A few months ago I had to do a multiple copies of I guess 10 negatives. I grabbed my biggest two tanks that hold up to 16x20 each. They also take 4 8x10s at a time. I'd expose eight sheets so I could fill the two tanks. Then I'd move over and process. When it went well it went very well. When I screwed up I had up to four screw ups in a tank. Still was able to push out more prints then any other method I could think of. This was with colour paper but RC paper shouldn't be much different in the tanks. I know some have problems with fibre paper in the tanks.
It really felt like work and if I had any need to this more often then I'd get a processor and just feed the thing with exposed paper.