Dakota, thanks for the inspiration. i took this idea and ran with it. stole the camlock bits off my MLT and Keggle so i need to order replacements andgrab the proper attachments for the keg posts but it's all set for carboys!
i went with a bulkhead/ball valve on the bottom because i wasn't sure how you were priming your pump with both input and output above the water line...
and when i went to the OrangeBox store i ran into a guy sitting on the ground with a 10 gal orange cooler, a page out of a homebrew book and a stack of fittings. helped him get his MLT built for his first AG tomorrow!
http://www.youtube.com/watch?v=O5E_kMyTueA