For the isolation mount, I first had tried and assembly with a stack of generic urethane disks. My original foot was bolted to the part of the novak flange specifically made for that purpose but there were two things I didn't like about it. First it interfered with the lower two bolts so the transfer case was only held on with four bolts to the adapter. Second, I didn't like how secure the through bolt ended up and because of the bolt placement, made it very difficult to access. So I decided to just pour a monoblock urethane mount.
I made a mold out of wood and mounted the bolt assemblies in it. The stack from inner to outer is bolt, fender washer, nut, fender washer, flange, nut. The innermost fender washer is clamped into place by the nut which will help secure anything from rotating during tightening, and secondly the fender washer will give a nice big surface area to spread any tension force through the mount. In addition, the way this is stacked, when the mount is bolted to the flange, the end nut will be clamping against the fender washer and nut resulting in only bolt tension and no preload tension trying to pull the bolt out of the mount just due to being bolted in.
And here is everything bolted up
This moved the bolts slightly forward in the crossmember so i had to extended the slots forward about a half inch.
Overall this made a clean setup. I'll report back with some results once some miles get logged. Hopefully by early spring.