Best front end donor?

[Bmpaul02]

I have a cb750k 77 looking to modernize things a bit and want to know what the best (easiest) bike would be to pull the front end (triple tree, brakes, wheel).

1.) It needs to require minimum boring
2.) It needs to be attainable

To that end I would alos need a new rear as well. So come on what ya got?

 

[Wee Todd]

77-78 super sport uses dual discs.the calipers (38mm pistons) can be swapped for 80-81 cb 900 calipers(41mm pistons) that will change the master to caliper ratio(search classic brakes for more info)later discs (lighter) can be fitted as well,,not sure but I think cb750f dohc discs(79-81??) will bolt right on.You will still have the 19" front hoop,,or later honda parts cb 900,cb750 dohc,vfr goodies etc etc