Do your bumpstops last.You should just have a 4x4 shop do your bumpstops. Have them put your VX on a articulation ramp and see how big of one you should use. At least this is what I was told (after I bought some). There isn't any need for bumpstops up front I don't think.....
Look in my profile and you will find the Bilstien part #'s I used that will give you a good idea on what size Rancho to use. I would just stick with your stock shocks up front until they go bad.
2001 Ironman Daily Driver... 3.5" suspension lift (OME912 springs and 1" spring spacer), ball joint flip, 1.5" front diff. drop, 33"x12.5 TrXus MT, 16x10 Eagle Alloy rims, Interceptor, PV muffler, K&N air filter, Alpine Supercharger, Bilstein shocks, and some trimming.
2000 Ironman Project LS-1 VX... very slow progress but someday....... ohhhhh someday......