I have the exact same truck as you do--same engine/same tranny--I even have the same color! Anyhow, if I don't end up selling my Comanche, I was looking into this. I used a lot of stuff from Novak for my engine/tranny/t-case swap in my 95 Wrangler (5.3 Liter Vortec/4L60E/NP241) and have been very happy with it. They are very knowledgeable and happy to help. Check this link out:
http://www.novak-adapt.com/knowledge/xj_swap.htm