Hello Darrell,
I'm having a go at a Rotor Tug also (among many other projects - both modeling and around the house, so it could take a while...), I'm at about the same stage as you, and I agree that the frames are painful to line up. I'm trying to build RT Zoe, one of the newer rotor tugs, and its hull form is slightly different from the earlier tugs, but I've only got the hull lines from the first series of rotor tugs, which makes it doubly frustrating! I'm building mine in 1:32 scale, and if/when I get started on laying the boards on the frames, I'll post a picture of that to see if it helps you.
dms toucan,
You should think yourself privileged that you got a response at all, I emailed them for the frame lines for RT Zoe and didn't hear anything! The frame lines that I do have were shown in a writeup about the first series of rotor tugs (RT Magic, etc). This was in PDF format, but I was able to copy the picture and turn it into a jpeg, which I've attached. I've also attached the frames divided into front and rear, with each side duplicated to make full frames to save you the trouble. The trouble is the image was fairly small, so when you enlarge them to a reasonable size, they get a bit jagged and hard to follow. If you want a copy of the PDF, PM me and I'll email it to you.
Phillip