[tinydb84]

It does accept the stock arms. The wait time is pretty long on it though.

If you just want to lay flat I would do a 2'' up 1'' forward Z. You will likely have to do some minor tunnel mods and maybe some to the rear if you are a short bed (depending on tire size). You will need to modify your trans crossmember and shift linkage. You will need some steering joints and a bracket to hold it all in place.

Pull your engine and front clip. Remember your jack stand points can change body gaps when you are putting it all back together. Cross brace everything before you cut. Get a few levels and clamp or tape them in place. Two jacks makes it a lot easier. Have a friend around to help line everything up if you can.

Lots of threads on here have Z's. Mine is pretty detailed if you want to look.