My seats (frames) came with the project and I suspect they were from Ken Knowles or Phil Tucker ? They are very light and fit well...except that the top of the seat does not rest against the top of the baggage compt. Rather than redo the seats I put a "stop" against the baggage compartment frame. The seat/s rest against the stop. I put a 0.50 doubler so the seats rest against the stop.
Put File Caption Herelike the seats as they afford room to reach between the seats and I put "storage" compartments/bins behind the seats to put maps and other gear. Maximize your space !
Not at all Bill, you'd surprised how many times I've said "better put some Williams to this" lately! Otherwise I'd be looking at a complete do-over in the garage. ;) You've saved my a$$ a few hundred times over.
Surely you don't need a tubing bender to get 10 or so deg out of it. Worst case drill out the last few (10 or so) rivets on both sides, tweak the seat and then reset the rivets. The last few rivets will end up with some oblong holes, if that doesn't pass muster put some -5 s in there.