[Trevor Crone]

Have a look for a Paterson Orbital tray - With these, you can develop up to four sheets of 5x4 film with less than 100ml of chemicals (although I prefer to use 150-200ml).

The Paterson Orbital had the option of a manual or a motorised base, but unfortunately, it is no longer in production.

I second the Paterson Oribital - sadly only available on the used market. Once load in complete darkness the rest can be carried out in ordinary room lighting. Continuous agitation is required and as said 1 to 4 sheets of 4x5, 2 sheets 5x7 or 1 sheet of 8x10 can be processed in a small amount of chemistry.