Been there done that( FL fender)   the FL fender is made of  much thinner metal than the stock fender , and is not strong enough to support passenger weight and tends to wiggle /wag back and forth sideways even if not. I found the best solution for me was to save the first 1/3 of the stock fender,  ,this saves the four mounting bolts to the frame and the two holes, toward the front on each side,   that are used to mount the side braces, which you'll need to reuse or make custom to add support an stop the wag. the cut you make should fall behind the shocks and be unobtrusive ,unless your building a hard tail(solo)  in,which case I would suggest a backing plate inside the fender at the four mounting bolts and normal braces to the frame.
      If your going for a full fendered look an old Sportster front fender is much longer at the rear than stock,  and allows great protection from road spray, without use of a funky looking mud flap. The Sportster and Savage both use 19 front tires of the same size ,but you will have to devise your own mount. Good Luck!

Playhard ,the regulator/rectifier converts extra power to heat when the battery is fully charged and there is more than enough to run the bike , the heat is dispelled by air passing over the fins.

I would consider mounting the rectifier to the front or one side of the battery box ,leaving it more open to air flow.

I ended up looking at an old school Sportster Rear Fender... I may go this route... Still have time I guess as we have more snow in the forecast…