Over on the IFSJA Forum, there is a discussion about installing a AW4 automatic transmission from a late model 4.0L I6 in a Wagoneer with a 360 V8.

http://www.ifsja.org/forums/vb/showthread.php?t=98429

My suggestion is for a billet flexplate:
1. that will bolt to the back of the 360 crank
2. bolt to the face of the AW4 torque converter
3. balanced for a 360
4. utilize the 4.0L starter ring gear.

A 4.0L flexplate could be used for a template.
I can not image this would very hard to build.

Secondly, a mounting bracket and hardware to mount a Throttle Position Sensor on a carburetor that the AW4 TCM needs.