Thanks for the feedback guys, and I'm glad to hear that about the LOA light so I can plan ahead. I have 2 fans blowing, one in and one out, and the tank is in a thermally controlled lab building (constant 75) so I think temp will be OK. I just set up the tank last night with sand and rock from Rob Toonen's old 55 gallon tank. There's an amazing amount of life already in there. I plan on topping off with DI water with maybe a little Kalk in there. I can easily do a 50% water change once a week with natural sea water so that should take care of all my params like Ca, Alk, etc. I'll hope to post some pictures soon of it and my friend Mike Mutalipassi's tank as well.
BTW, Arlan, I drilled those holes myself with hole saws and a little 3 in 1 oil. No cracks! I had to put 3 rubber washers on each bulkhead--one on each side and in between the tank and sump.