Amp forks would not look out of place at all on a Fat, especially with the SAB they did with the AMP rear end. I managed to get a set of ti forks that were of the segmented and 1 inch variety for my yet to be built yo, but if yours is a later edition, does it have a 1 1/8 steerer as you'll have more options. Before I found the rigid fork, I had (and still have) toyed with some tange struts, tange big fork, and of course RS Judys (in FSX, SL or XC guises). Embaressingly and due to being indecisive, I still have all of these forks to try out as/when I get around to the build, to see what looks/works best before I shift the ones I don't use.