Hi. This is probably a stupid ? but when you are collection an E92 set how do you do it. There's Nadja, Dockman, Crofts candy and cocoa. Do you mix them all together or do the backs need to stay seperate. Is it one set or 4 different ones? These colors are freaking awesome. Also the prices seem to be all over the place. What are the prices for common raw good, vg. Thanks for any answers and I apologize for my ignorance.