About the stabilizer:
Stabilizer indeed can be reused many, many, many times (just see the sheet). Of course, I didn't realize they didn't provide much of it -- just enough for 60 rolls with the suggested amount of reuse -- until I had poured an underused batch of it down the drain!
To make sure I could use a smaller volume of stabilizer in tanks with a higher capacity of liquid, I agitated it like one would a JOBO: laid it horizontally and rolled it around for the suggested time. As long as the tank is half full, it'll work, and you don't have to worry about it not getting to the whole surface area of the film.