the rear will be cheap. the front will be spendy. it's worth it though. i've done soa on my 30 and now on my waggy 44 i just got. costwise, you will need steering arms and steering linkage. make sure the waggy front has flat top knuckles. 73-76(or 77?)you will also need ford hubs and rotors to retain your 5 on 5.5 bolt circle. not sure of the cost as i'm still looking for them myself. chevy brake calipers too. i think you can use the waggy spindle but i will find out for sure when i get my ford hubs. if they don't fit i'll try chevy 44 spindles. the ford spindles definitely will not work.

waggy leaf springs work perfect up front. you will have to outboard the springs so placement won't be an issue. you'll gain two inches of wheelbase up front. you may want to use front wag' leafs in the back too to get another 2". there are endless possibilities. i just bought some dakota leafs for the rear and i'm trying to figure out the best way to make them fit. they are way too long but i want to keep the wheelbase they provide so i can fit a double t-case setup. the problem is, they stick out past the rear bumper 5" and it looks retarded. i don't want to stretch the tub either.

anyway, if you go for the soa i can post some pics of the stuff i've done to give you some ideas on how to solve the problems you'll come up against. i say go for it but it won't be cheap. it's not as simple as putting the spings on top of the axles. there are alot of other factors to consider.