Looks good...
4" lift spindles (88-98) from Rough Country run about $300 a pair. The rear could be done with a
4" shackle flip from ORD for $189.
The front lift will require a few other items as well such as A-arms and ball joints and such..
I had thought about doing this to my 82 C10 (32" tires) but the frame split on it so it is parked awaiting a frame transplant. This brings up another good point...
Reinforce the frame around the steering box.
ORD makes a kit, but I do not know if there is a difference between 4wd and 2wd frames in that area.
Also I hope you have rear geared your rear axle or your trans will forever hate you. It is such a dog in town and has no torque on the highway...