RE: GP Waco?
Well, the video says it uses Fiberglass landing gear and struts. If these are the same as the FG gear they have been using on some of their later models (and I see no reason why they wouldn't be) they should be outstanding. I've used them on a few of their newer planes and I love them!
As for the size, a 30cc gasser would be too much - but it just might be ideal for some of the new 20cc engines out there.