Nice! Yeah I am going to go with the signature series 60" long sump. I like the Ferrari red, as they call it. I have 84" of length x about 20" width inside the base but my tank sits up a little high I actually have almost 35" of clearance. I can fit their 30" tall skimmer and bio-reactors which is nice. Even though the footprint is tight inside I still have a good deal of overhead room for plumbing stuff. I got 3 eco-tech vectra L1's and an M1 going in there. 2 L1's for main returns 1 other L1 for a manifold for the lesser flow in reactors, sterilizer, pellet master, etc. Then I have the M1 just to drive the large skimmer. Can't wait to get this setup all built. Will be my largest tank yet.