Replacement for Printol needed

I've used Nacco's Printol 12 for several years now with great results. A $13 bottle lasted me well over a year. I went to Freestyle for more and was informed that NACCO is out of business. I ended up with some clayton P20 which is 2x the price and recommends a 1:7 dilution. I haven't had the chance to print any negs that were printed with the Printol yet but results seem good compared to previous prints. These developers are similar, right?
What's the closest equivalent to Printol 12 that's liquid, has long shelf life, and cheap?

thanks
vinny