I too have a dry darkroom, plus there are no electrical outlets, I run an extension cord under the door. I print fiber with no problems by using a holding tray, then transferring to a Versalab 11x14 archival washer at my kitchen sink.
My room is 7 feet 4 inch by 8 feet 10 inch. I have a lot in it, but it is well spaced and quite easy to use. It holds my Omega D3V enlarger, Polaroid MP4 camera, film drying cabinet, cabinets with my chemicals, reels, and assorted supplies. I have made a quick assemble/take down drying screen rack that I use on my counter top once I'm done developing and have put away the trays. If you have any questions about my set up, please ask.