theres a multitude of tables available if you google: suzuki fork matrix etc
the first thing is determining what length you need - i think many modern USD will be too short
start with the GSXR1100 which should be older/longer - newer forks will be be more common, cheaper and better condition
given just staying within suzuki donor the permutations are many
http://i45.tinypic.com/2cht63q.jpg
you may could require a steering stem swap, different wheel, different brakes
do a rear shock or trick carbs first - if you intend on injecting money