Just saw this on Ali Express: https://a.aliexpress.com/_m09DdZ9
The photo shows it as Pioneer BDR-S11JBK. Comes up for me at $112 CAD. Sticker shows 2018 manufacturing date which implies it's MakeMKV ready.
There are also listings for new S13C-X's, though those are coming up at $600 CAD.
NOTE: The vendor for this is a generic "Shop12345678" style vendor, which is the Ali Express version of a numbered company. Some of those are fake vendors. Ali Express holds your money in escrow and will refund you if it turns out to be a fake, but you do need to watch to make sure the refund time doesn't expire. That all said, I've ordered one.