It's matter of balance.
First consideration was to keep the Wagoneer looking as stock as possible.
Reuse, I was able to use the factory bolt holes in the frame for the engine mounts.
Reuse, With the engine in place I was able to use the factory cross member, bolted it up to the factory rear set of cross member holes.
With the engine setting at 6° down the trans and T case was too close to the floor.
A 1" body lift fixed that. The oil pan had about 0.25" to .5" clearance to a web on the front diff with out a lift.
I don't consider a 2" lift "tippy", 6" is tippy.
If I had the money I would have bought a tig welder to modify the oil pan.
If I had the money I would have ordered the complete (front and rear) 2.5" spring lift kit and eliminated the rear blocks.