Success! It took far longer than I thought it would, but here is the finished product (mostly, still tweaking it).
It's been wonderful getting to work with all that extra space in the new tank. I hope to pick out some good mid ground to foreground plants to help replace all the javafern in there.
My only worry right now is my two 150w heaters seem to be running almost constantly to keep the tank at 75 and the basement will certainly be getting colder soon. Should I pick up some bigger heaters?
The hardware thread probably isn't the place to ask aquascaping advice, but if anyone wants to throw some in there, feel free