ORIGINAL: Coshy
i'd make some wire half loops to act as wingtip skids and some silicon tubing on the tail skid as an easy replacement item.
I made some scale wing skids for mine. I don't know how you planned to attach the hoop type (like a Jenny had?), but I had to make some hardpoints between the last two ribs on each side of my wing; wasn't a problem, as I was re-covering the plane anyway, but without cutting the cover, I don't know haow you'd do it. Here's a couple of pics anyway: