I like having 2 enlargers (LPL C7700 & LPL 4500?) as I can flash paper with the one I'm not enlarging with, but I don't have to share with others... To share with others, something with a lens turrent (with 50/80/135 or whatever lenses installed) and maskable neg carrier would be handy. Each setup ready to go. Are you intending these to be used concurently?