OMG, your my hero for taking that kind of leap! What's your budget on this colossal build?
I feel really bad about having the be the "neigh-sayer" at this point in your build but the AC70 filter from your 10g tank isn't going to cut it for your new tank!
Seriously though what are your plans for filtration? I love the Hayward EC40 that I link to in my signature.
Very nice job!
P.S. A good fiber glass job turns out practically invisible.