I find buckhorn handlebars some of the most comfortable bars on a motorcycle. I seem to be in minority, though, but that's OK. In order for these bars to fit my bike I needed:
1. a longer brake line (I went with Stainless steel braided brake line)
2. about 12" extra of wiring for hand controls and front turn signals
Throttle cables were OK and clutch cable was OK, though strained and after about a year I replaced it with a +6" cable from J&P Cycles catalog.