That depends on your town. My town would let you do it. You'd of course have to have all the requisite inspections (rough and finished). Personally, I think it's a bad idea, though. You might not know what you don't know. On a job that big, I'd trust it to a pro. Run the low voltage stuff yrself if you really want to save (ethernet - does anyone still have this???, audio, phone, cable).