You can download them from IPDB: http://www.ipdb.org/machine.cgi?id=3780
With that many to burn, it may be worth while to buy a programmer and eraser and do them yourself. I just started doing that and documented what I did: https://pinside.com/pinball/forum/topic/lyonsden-not-so-guide-to-eprom-programming Overall, pretty easy to get going if you are in Windows land.