Set-up time can be greatly shortened by using chemicals that have a long working life. For print developers, for example, Ansco PF 130 which I store in amber glass bottle topping off end of session. For fixers, I've switched to TF-5 since it only takes 1 minute in 1 tray to fix prints. I built a cart on rollers whose drawers pull out in stair-step fashion. It handles up to 4 16X20 trays. Roll it next to utility sink in garage ( print washer in sink), and I can be set-up in less than 5 minutes.