Great bike obviously. The forks don't look to have enough exposed stanchion to be 100mm - I honestly think they must be 80, and they don't really look much longer than my earlier ones with 70. In which case, they shouldn't destroy the handling of a 95 frame, and at least they're good forks.
FWIW, my eye tells me that the head angle isn't too slack (the pic isn't taken on level ground, which may give a false impression that it's slack). And I always think the line of the saddle should point at the bars, so again yours isn't far out. And after all, if your arse likes it, who's going to argue with your arse?