I have a working Selectric but I would love to upgrade to a better specimen in condition, model, and color one of these days.
Too bad these beasts are ridiculously heavy and hard to really know the condition.
I believe that it was in this forum where somebody had a really nice guide on how to clean and rehab these.
It might have even been Ripster before he lost his ****, it was the kind of thing he was good at, once upon a time.