The 3 inch lift for the 94 can be fitted to a 96. But if you do you will put added stress on brake lines since they will stretch out. But I think 3 inches is a bit much for a body lift , I have a 2 inch on my 99 and it was made for 95-97's.
As for shackles I'd look into a set of Daystars for 2 inches of lift.
I know I don't have any parts for ya but maybe that info will help !