Edcor USA ... These are not listed on their web site, but my understanding is that anyone can order them since the development was paid for already.
I asked them, and they said no, maybe because I was asking for both 4 and 8 ohm outputs. I do need both. After the 1st of the new year I'm going to try Primary Windings 8k 25W. They are busy right now, plus the holidays. They will barely fit, but they will fit. $266.34 per pair delivered to the USA.