In regard to moving the tank into the house, when mine was delivered the guy came equipped with these suction cup "handles" that we used one on each side. Four of us moved an 8 ft. acrylic with relative ease because these handles made leveraging the weight so much easier. He said he got them at Harbor Freight.
If you can possibly have an 8 footer, I would encourage you to go for it. It's really a whole new fish keeping experience. For africans they can set up nice sized territories so it's possible to have more than one male of the same species in the tank without them getting pounded. For larger American cichlids, I was amazed at how well everyone behaved with the extra space and the chance to have their own personal space.
