RE: ARC Compensator
They were Eureka short kits framed up by the guys at Pyramid Hobbies in Cullman, Alabama. I talked at length with the owner, Sid, and ordered an Atlas from him several years ago. I was very happy with the workmanship, though questioned using 3/32 sheeting on the wings...too heavy. Otherwise it was quite nicely built.
At the time, they had the Compensator, Atlas, and I believe Curare available and had plans for many more...sadly doesnt appear they are available though I assume the Eureka short kits still are.