Are you going to have a website just covering the build up of this tank that we can vivit on a regular basis?for you old salts what tanks were used?I know p38s but there must have been others I had the chance to get 2 tanks a couple years back in Maine for 200$ for the pair they were about 3 foot in diameter and around 16 feet long no clue what they came from.A local; that was there bought them and they are now floats under a dock
Good luck with the build. You'll probably have to stretch a bit to fit an SBC. Feel free to email with any weird tank questions, I've been through it all. .