Them rearsets, I can tell you how to make them with a drill press, hacksaw, files and sandpaper... honestly..
The big sprocket Indian hillclimber;
I know the bike, I have seen it, have been to the guys place in WA state, have bought Indian stuff off him, but for the life of me cant remember his name..
Plus he had it up here at out vintage track, he will probably show up in 11 if he knows it is open again.. neat stuff at our nearby Okeefe Ranch Cornfield Racetrack.. good thing I almost got the 754 hack going again..