hmmm i got a willem but mine was $45.00 not quite sure if thats the same one or not. If your thinking of trying to make reproductions check out
www.nesdev.com..., its honestly alot of work and kinda hard. Plus youll need some soldering skills and a good bit of other tools. I made a couple repros but it took me about and hour and a half for each one, and i had someone helping me desolder lol. You have to run a bunch of wires on the EPROMS as well. Best bet is to get bunnyboys powerpack then you can download all the proto games and have em all on one cart. Good luck bro!