That is a very nice collection...looks very much like mine.

I see that you found my post in chiptalk. The early 1990's 5000 NCV h&c chip is fairly common so you shouldn't have too much trouble picking that one up. The 1994 buy-in chip is harder to find I've only seen 2 on sale and I managed to pick one up about 5 years ago, to my surprise the seller was Todd Brunson! I guess they had so many of them they forgot to use that one....

I never knew there is a variation on the 1000ncv chip. Thanks for pointing that out.

Good luck with your hunt.