Hi Pipe,
I downloaded those Russian Tripe plans you mentioned. They're scanned from a drawing and there is a lot of clutter in there, way too much CAD work to clean up. Bob Holman sells Tripe plans at 2" = 1' which are, BTW, VR/CS eligible. He may be offering them in larger scales but it's best to ask him. Also Jim Kiger's 1/5 scale drawings can't be beat, there's enough information there to build a 100% size flying replica.