That did it, thanks. (Took me three tries to print a base big enough, mind.)
Way less fraught that I was expecting, I was thinking it was going to be like the Thunder Fox but worse. As it was, a lot easier and quicker than most; they are the quickest quads I think I've done thus far.
Sidenote - the Catapult II went together smooth as glass, too. Easiest and fastest assembly, I think of any mech I've done this year (that needed assembly), even with the seperate feet. Kudos, IWM.