The Colt was $300. The Marlin was $650. The S&W 624 was $500. The S&W breaktop was $350 but that included stripping the original flaking nickel and then re-blueing the gun. The Walther PPK was $300.
Gouse does all the work, by hand, himself. I think he does fine work and I think his prices are a steal!
www.mtart.com has much more info and pricing and photos.