Dude working on project is on IG by the name of chitin_defense. As far as I know, preorders on the receivers are over and are supposed to be shipped prior to elections (in case of an AWB). Parts kits for the rest of the build are supposed to come out shortly after.
This may or may not be entirely accurate, but this is what I have heard. Receiver preorders were $250, full kit all together (including receiver and helical mag) is estimated to be around $1600.
Why wouldn't you? 64 rounds of Federal HST would be pretty effective.