If you have limited storage space - the hitch mount hauler takes up the least amount of room.  I have seen them used for 250 pound dirt bikes and they are easy to load......start getting up toward 400 pounds and I think it would be scary to load.  When you get the bike up to the height of the hauler the handlebars are going to be up at head level!

An open trailer doesn't have to be horrible on fuel mileage - if you get one that doesn't have the large ramp that raises up like a sail.  I had a small open trailer and you really didn't know the trailer was back there.
Little trailers like this are for sale on Craigslist frequently......this one is a bit rusty - but is a good example of what they look like.
https://cincinnati.craigslist.org/mpo/d/sardinia-motorcycle-trailer/719813328...

I have a small enclosed trailer that also functions as my room while camping.  I like being able to haul a bike and have it secure and dry - it is nice driving through the rain on the way to the mountains with my bike out of the weather.  I also like having the bike locked up on those nights when I have to stop at a hotel while on the way somewhere........I use this trailer a lot.  I haul it with my little 4 cylinder Pontiac Vibe and I get 32 mpg without the trailer, and it drops to 25mpg when I haul the trailer.....the convenience is well worth the extra cost of fuel.  The trailer is 8' long and 4' tall inside, and the rear door opening is 45" tall - most standard motorcycles fit inside and with a Savage you only need to remove the mirrors to let it fit.  On the F800BMW I have to remove the windshield......I have bar end mirrors on my Savage Cafe and it fits without removing anything.

I hauled my Savage back from Long Island New York to Kentucky, been to TN/NC/GA countless times.  My wife and I have used it for weekend camping trips, I have hauled furniture, lawn mowers, and other stuff in the trailer.......when it won't fit in my car.  I bought the trailer used from a fellow who hauled rabbits all over the country in it - he installed the windows to keep the rabbits cool in the summer.

HF has a 4X8 trailer frame. I have one, I added staked and pinned walls I can take off and put down 3/4" plywood with pocket tie downs in places for a bike,, Ive had it full to the top of the 2'tall walls with compost. It held up fine,,
They are designed to fold up and roll away, like a ping pong table,, I didnt cut the floor or add the wheels for rolling away,,

The lights are cheesy,, you might wanna get a better set..

I have been checking out the HF trailers. They are attractive price wise but look to be a project to get them usable. Not sure I have time for another project.
Lots of trailers on Craigslist too but again with the projects.

Dave wrote on 10/03/20 at 12:58:17:


I think I'll just start saving up and once I'm ready I'll see what's available in my price range. So far I'm really interested in a two bike foldup job. It will be ideal when I relocate to a new area.

I like the tow dolly
https://rokiotoex.com/shop/portable-motorcycle-trailer-hitch-carrier-tow-dolly-8
00lbs/

 
I built a front tire holding tow dolly from a Harbor Freight front wheel holder.  

Worked fine until I took a not so sharp turn in my front yard to get out on the street.   The bike tilted more and more over to its side as I turned the car until it folded over using the steering stem as the bend point.   I stopped and removed the bike before the damage got any worse.

Front forks had compressed the rest of the way, making enough tie down slack to allow the rig to tilt over.

Front tire and rim took the brunt of the bending damage with the entire  length of the bike acting as a sideways bending lever against the front tire and wheel holder.

Took me 3 attempts to re-true my front rim and tire from the leveraged bending and twisting it got from only 20 feet of towing.

I threw away the front tire gripping tow dolly rig, putting it inside the trash can so nobody would pick it up out of my trash and damage their bike with it.

I bought a Harbor Freight trailer kit, built it with a 4x8 sheet of plywood and some 2x4s and used it for the rest of my riding career.   Worked great and was cheap enough to suit me.

Still got the trailer ......   haul leaf mulch with it.


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Note on HF trailer -- the HF wheel lugs get loose over time, tighten them periodically.

I use a HF trailer.  Works great.  First thing I did though was replace the wheel bearings from China with Timken wheel bearings.  Searched the web until I found a discussion about which bearings match the originals.