HERE is a link to the Paia forum with 4 pages worth of projects and their original documentation. included is the ubiquitous Rocktave Divider among others. unfortunately many designs use the now extremely rare 4136 ICs, so the layouts will have to modified or redrawn. none the less, the schematics are there, along with breakdowns of the circuit as well as construction instructions. check it out. i'm sure there is something there from the Paia workshop that you haven't yet seen..
FSB forumite roseblood, pointed out to me that you can get the 4136 on eBay pretty easily. he's got a vero layout that uses a 4136 for a dual tube screamer circuit. check it out over at freestompboxes.org!