So now I think I've talked myself into doing black diamond blasting sand for substrate instead of gravel.
So in summary:
6 Colombian tetras
6 Peppered corys
1 - 2 honey gouramis
Fluorescent hood (for now)
306 Fluval canister + Penguin 200B HOB
200 W heater
Driftwood, fake and live plants and rocks and black blasting sand for substrate.