Inexpensive header board for P1?
I'm a poor man so whenever a new project comes up, the starting point is usually an old $1.50 Arduino Nano plucked from an infinite stash I purchased many years ago. Got a project now that demands a P1. $35 seems steep on my extremely limited budget. (I really ought to file for Social Security benefits.) Cluso99 used to make an inexpensive board. I've also heard (or maybe just dreamt) that there are board houses that have open source board designs donated by the public, to the effect that you can pay to have a few PCBs made from one of those designs. Since I have a stash of 40-pin DIP P1 chips, something like that would be ideal...if they exist.
So I'm just asking if anyone knows of a source of unpopulated P1 header boards, or a source of inexpensive populated P1 boards?