Well for a guy with only a few basic tools, I'm not doing too bad so far.
Bought a 16 gallon bucket to use as a filter, and moved the thing in front of the fireplace:
Cut a hole and installed the inlet fitting. This will get siliconed later (I have no silicone, or silicone gun here.)
and skipping ahead I did the rest of the filter piping (just fitted, not cemented or anything.)
The filtration will be super basic. I'm just going to put a little egg crate in the bottom of the bucket so there's a 2" settling space, and pile bio media on top. On top of the bio I'll put some filter felt. With 16 gallons to work with, filtration should never be an issue. I'm just going to put a pump in the tub to feed the filter, and let it gravity feed back into the tank. The purpose of the Tee on the return plumbing is threefold: One it will be a siphon break, so the filter can keep water in it, even if the pump turns off; second it will allow the return flow to entrain air and aerate the water a bit, and third, if the filter starts to back up, it will allow free overflow back to tank.
Obviously the "spraybar" is not yet drilled and needs a cap put on the end of it. I didn't buy any extra fittings though, fittings here are stupid expensive for some reason. I was going to use 2" fittings for the return plumbing, but the threaded tee was almost 10 bucks!!