Just a quick update. I finally had two hours last night to play with the tank and try to deal with the leaking bulkhead. I found out that the hole is a little large for the bulkhead and when I tighten it too much the gasket starts to fold upwards causing the leak. What I’m trying is I loaded up the gasket with silicone both between the casket and bulkhead and between the gasket and the tank. I’ve let the silicone set since that point and tonight I’m going to fill up that overflow section and check for any leaks. Salt has been started in the main portion of the tank since it has water and a couple of good pumps going to get it mixed etc.

If this doesn’t solve the leak I guess I’ll go out and try to find a sched 80 1” bulkhead since the size difference ion the threaded section may help completely solve the problem.
Thanks again to all that have offered your help on this monster.