Oh man! Don't tell me I'm the only person who gets off on building stands, filters & related stuff! If I could find a way to build heaters cheaper than I can buy them for I would be building them too. I've already cut a vent into the main trunk of my forced air system to heat the fishroom, so the heaters hardly run at all when the furnace is running.
Most of my tanks are bare bottom, with a heater, filtration, and maybe a plant for fish to play with, or piece of pvc for plecs to hide in. Easy to keep clean, fish are happy & healthy. If you understand how things work you can build your own, saving a ton of money.
The main reason for building my own stuff at first was the way commercially made stuff was so cheaply designed & built. Store bought stands suck, & for the price of a hob I can build 2 filters that hold more media, and are easier to maintain. Get some parts & pieces & experiment. Eheim had to start somewhere.
Tolak