Susanna, It's sounds like to me like thinning the herd and more about refining your collection. You sound ready to let go of duplicates and machines that are in less than desirable condition. That makes good sense to me. If you don't have time to work on them then focusing more on machines that work is good. Only you can decide about the 301's. I think you have a good plan in place to keep one of each color and a long bed in the bunch. Don't be pressured to let the others go or you may hold resentment. I'm sure if you wish to re-home them your friends would be most grateful to receive one.