@Kevin. The only issue I foresee any is that not all the combinations are present in your variants of courier chess. For example adding an extra fibnif/lancer, modern elephant, frog, whatever the vNW would be called, phoenix/waffle, and then an archbishop or chancellor, or BWD or RFA would result in 5*4=20 collection items(let's call them this way). That is actually easier to do then an subset of them. But we can work through that though. And remember that the community helps, if you ask the right questions!
@Kevin. The only issue I foresee any is that not all the combinations are present in your variants of courier chess. For example adding an extra fibnif/lancer, modern elephant, frog, whatever the vNW would be called, phoenix/waffle, and then an archbishop or chancellor, or BWD or RFA would result in 5*4=20 collection items(let's call them this way). That is actually easier to do then an subset of them. But we can work through that though. And remember that the community helps, if you ask the right questions!