How big can I go while keeping the same light?

[TheReefGeek]

DIY is always a great option. More for the learning and enjoyment that the price difference. Quite often you spend close to the same amount of money compared to new, but YOU built it.

Router is the word you are looking for I think.

And you need the wood for the doors. Skinning the naked frame is as expensive as you want, depends on the type of wood you want.