I if i wanted to change the frontend i'd swap it for a late model front end off a CBR600RR with the later style radial caliper, replace the springs to suit the lighter bike (in reality my hundred plus kg's means there probably fine just as they are). And then get my ohlins guy to work his work his magic on the dampeners (I don't actually have an ohlins guy).

Maybe pimp it out by getting the sliver finish on the sliders anodised maletic red or maletic blue if it's a rothmans.

I'd be curious to know how much the weight of the bike increases by fitting a U.S.D front end, as they tend to be heavier and the effect of this on the handling.