I bought this one for $80. I put my sc75 and pipe on it. Put a big header tank in ,2 aeleron and 1 elevator servo. Covered the rudder servo holes and the extra elevator servo hole. Took all the lead out and balanced it with its running gear.
The undercarriage is my idea after reading one of the posts explaining that the wires run parralel with the wing wich gives a torsion bar effect on most models , but not these. The loop has some give but not too much and it seems good as i have not bent it at all since fitting. I have had at least one bumpy landing that would have bent the old gear right back.