Guys, I am looking for some advice

I want to make some 20x24 prints but only have room for 3 20x24 inch trays in my current darkroom set up.

I cannot sensibly stack trays either.

What I was going to do was Dev > Fix > Rinse/Water Holding bath.

From the water holding bath I can take the print to my Archival Washer.

I know I am going to kill off the Fix at a quite a rate – but that’s OK

Should I add some Stop Bath (acetic acid) to the Fix (Ilford Hypam) to help resist the alkali of the Dev ?

Alternatives anyone?