Welcome to the site chop52.
YOur project is looking good!!
I had a 51 five window a few years back with a 350/400 combo. I noticed you have started a project journal. There are several members building AD pickups, suburbans and panels on this site. Check out the Project Journals section of the site for the members builds. As well use the Knowledge Base and the search function for quick answers to your questions. Here are a few links I have collected over the years:
http://www.geocities.com/MotorCity/6975/specspag.htm
http://chevy.tocmp.com/1948_51truckshop/index.htm
http://chevy.tocmp.com/chevyowner/52tomindex.htm
http://chevy.tocmp.com/chevyresources.htm
http://www.stovebolt.com/
http://www.50chevy.freeservers.com/topics.htm#Topics
http://www.alanhorvath.com/54chevy/index.php
http://www.oldgmctrucks.com/
http://www.ad-engineering.com/