Yeah, I'm not gonna go crazy on the engine at all. Sticking with standard Indian-available stuff; engine-wise just gonna upgrade carb and exhaust, really. (Also not good to overstress something made to local tolerances!)
Aesthetically I'm going to do a lot of stripping-down, and I know that's not going to be to everyone's taste, especially on such a piece of history as this...but it's my bike, heh! And I will keep everything totally reversible. Only have one little tab/bar to weld on in order to get the new seat to fit, which will be easily removed should it be necessary (and I think the stock seat will fit on even after I've done this.) Will use a removable bolt-on seat support, similar to what you can see in the Badger's build diary.
Once I get it back to the USA, though, it's Fireball time! Whether I exchange the 350 engine for a 500 in a trade ,or try to replace the necessary parts on this one, time will tell.