ES model G80/G81 pop up on European ebay occasionally for good price, under 30EUR. Just need to keep an eye out. I had a look and did'nt find any right now, but plenty of CH, PO, and RD which I have never see listed so many of at once.
Also, if you are not in a hurry to get something we plan on trying to offer ES layout doubleshots in upcoming group buy in the spring.