If you leave the barrel out of the reciever, you can get a small park setup put together for less than you think. The most expensive part for me was getting a blasting cabinet setup, only because I needed one also for projects outside the firearms world. I think you might have to blast your part anyway before moly-resin or whatever oven-cure setups are out there also, so that something to consider. For my Romy-G's I parked to match the original parts and the last ones were spot on.