Mostly looking for a vendor of 3,4DMMC but either of the apbs would be good. 3,4DMMC is not widely known but it was once fairly popular and known as "M2" on the now-defunct site euphoric knowledge.
Not looking for clearnet vendors, unless they ship us domestic
I'm looking for a 6-APB vendor as well. Unless you live in one of the few states where those new RCs are banned like me, you can go to /r/rcsources and find a clearnet vendor that ships within US.