its because you dont need to be specific there are literaly 1000s of forks that will work for you. It all depends on your geometry. If you really want something to not alter your steering too much you will need to do some measureing to find out how badly the extra fork length will change your angles. It seems like you dont feel like doing any work or even care what happens as long as you can barspin. So.... here this should work for you.
http://www.universalcycles.com/shopp...0&category=633