I had a home build compressor and it worked great. The only thing is you will need a safety valve. You should doubleup for the tank. One compressor to run straight to the tank and one to run straight to you lines and then a Y to the tank. This will keep the tolls running.
To all, In Canada a good Compressor goes for 500$. The cheapest one I have found anyone can use is 350$ for a small hobby one. Our prices are 20-50% more.