HELL NO. There is no way I would do over 3. Not safe. Would love to help him if he does a diff drop suspension lift eventually.
A diff drop will need some cut/weld to happen, mostly on the UCA side of things. Building a bolt-in bracket to relocate the LCAs shouldn't be too bad. Relocate the alignment plates, build a support for the diff/splined disco out of 1/2" plate and tube and bolt it in. The "HA1" front driveshaft has enough in/out play to move down a few inches and clocking the front diff slightly would help as well.
All of my front end strengthening was in preparation for building one of these. Before I "gave up" at least.
Who's going to pick up the torch?