just wanted to ask...why do you want to build a DIY stompbox in the first place??
i guess that will justify yung gastos mo. if its just a hobby, you shouldnt worry about it, as long as you can afford it why not...if its a matter of wanting to save money on efx, i guess its not gonna work too well. its up to you. if you already have the tools on hand (you'll need a drill, soldering tools) and think you wont be spending too much on experimenting. maybe you can build one cheaper, or close to the cost ng mass produced pedals like Boston/Behri stompboxes. depends really on the complexity of what you're building. if you some it up, yung time,transpo,late nights de-bugging a circuit,tools, etc. will all add up...