Quote FreeSpirit
"Serowbot....well you explained that pretty good
So can you widen the stock seat?"Making the seat wider, is the hardest thing to do. Just adding a layer of foam can fatten it, but without widening the seat pan, the foam won't support any weight. Waste of time.
The seat lift mod will scoot your bum back to wider part of the seat, and that is worth trying. I also recommend a fake sheepskin cover, it will do much more than you might think. Try them first. For a smallish seat, the Savage seat ain't bad,... and is worth trying a little fine tuning to get right.
Now, if those mods aren't going to help you, you want a wider seat.
Widening the stocker can be done,... in the sense that anything can be done with enough time and money, but it really isn't worth it. So, you either want to have a custom seat made (very costly), or find a seat from another bike that you can make fit.
Most Sportster seats are narrower and less comfortable than the stock Savage. Yamaha v-star seats are very wide and comfortable, but they might look too big on the narrow Savage frame. You can get anything to fit, if you are determined enough. I would go to a dealer and sit on a bunch of seats to see which one suits me, and then study how they mount to see how hard it will be to adapt it.
Sorry I'm not of more help, but I don't know of any specific seats that adapt easily.
Maybe someone else here has some ideas?