Re: Front caliper swop
I did a front end swap once, bolted on an Interceptor 500 front end with twin discs, because I had one and the EX500 needed new forks.
Had to mill the triple clamps 1mm for larger fork tubes, and then I slid the Honda front end into the Kawi triples. Kept the Honda front brakes and master.
ZRX1100, Bandit 1200S, GS500