Finally tracked down my power steering leak. The reservoir I got from Rock Auto was made a hair too small, so the fitting that went into the pump itself was small enough to not seal on the o-ring and was pissing fluid out like a sieve. I solved this problem with RTV

In the process, I also managed to snap off the nipple on the back of the reservoir for the return line, so I whipped up some JB-Weld and let it bake under a heat lamp for a bit. I don't plan on leaving it as such, but it needs to survive until I can afford a WJ pump.