87. I think the way I’d want to go with it would be to have each one require a special (and different) recipe to make the press. I’m thinking multiple different modpacks for integration. So it’s not TOO onerous, and they can be duplicated once made. Like maybe the logic processor press requires some redstone components, the calculation processor needs some more complex parts, and the engineering one needs heavy duty wiring or opencomputers parts. These are just off the top of my head, I’m sure I could come up with something better, but you get the idea?