I have been fiddling with a home brew Tech Pan dev from the Darkroom Cookbook, and it works very well. I have a couple of sachets of technidol, but not enough to work with the amount of film I am working through.
I bought a sealed 25 sheet box of old 8x10 tech pan at a camera show for $5 last year. The box was distressed. I cut the 8x10 sheets down to 4x5 film size. It turns out that one (always the same) quadrant of the 8x10 has an adhesion spot. Something heavy was placed on the box for a long time and the emusion has thinned as it flowed away from that spot. Stll, 75 sheets of tech pan 4x5, and the ability to fine tune developer results on another 25 sheets, not bad for $5.