I'm in the process of building the Van Mourik Zlin. I bought a short kit from Laser Design Systems. Pretty much a wast of money. Many of the parts were/are unusable and some of the parts that were cut to plan still didn't fit as they were mis drawn. The bottom half of the fuse is now built and need to start on the wing. I'm looking for retracts at a "reasonable" price. So far not much luck on that front. I think I'm going to scrap the wing and cut some foam cores. I'll use some of the wood from the center section especially in the retract mounts and maybe the spar/dihedral braces as that is a good design.
Ken