I think you are going to be out of luck when looking for kits in the 60 size. I looked at the MAN plans and they have a set of plans for the Atlas that is just built up construction. I often cut my own kits, very easy but I stink at cutting foam or I may have built there Curare. Modern planes?? Not really but there is form in function. The Ultra Sport is Grand Son of Kaos and an outstanding plane, a bit of bashing and you would have your own design.