Built D300 is gone. Motor and tranny spoken for.
Adding stuff:
Two B&M Supercoolers. Just pulled, worked great. $50 for both
http://www.summitracing.com/parts/BMM-70264/
3 core CJ radiator. Bottom outlet had to be relocated. Works just fine. Relocate or us it at is. $40
Taurus fan from the 3.8L. Two speed, works awesome. $40.