For me beerol doesn't get to the density I'm looking for and caffenol, depending on a few factors, will result in a relatively high-contrast negative. The combined recipe is similar to a stock D-76 or ID-11 in terms of conventional developers.

200ft/L is a conservative estimate and I have been a part of workshops where we developed 1000ft per gallon, so YMMV. Checking my notes it looks like I processed reversal last time I did 4 rolls and so each roll would have been developed twice, essentially.