Good to hear they haven't arrived not that they're sold out

If they offered a package without the FC I'd be totally down for it, but I'm 100% on dRonin now so I'll be using a pico blx. (Plus I like the idea of supporting FuriousFPV who did so much to make this whole class possible with releasing the pico in the first place.)
As for Lexan, 11x14 sheet at Home Depot is like $8. Acrylic (like the clipboards) is cheaper...but brittle. I've used both on quads before and acrylic isn't worth bothering with. I've done 2 230 sized quads that are basically just 1/2" wood dowels joined with lexan top/bottom plates and they hold up pretty well. Yeah, I've broken quite a few lexan plates but they're cheap to replace.
Cutting Lexan isn't that hard - for simple shapes. You just score it with a knife and snap. You can also cut it with a bandsaw/jigsaw/coping saw but it can develop cracks if you're not careful. An O-flute bit on a CNC works great and that's what I've been using the past year and why I'm considering doing something with it
But plywood would definitely be easier for most people. In my experience ply of the same thickness tends to hold up a bit better than lexan as well. But as small as these are I suspect lexan would hold up fine and look pretty cool. Drilling holes for the motors may be tricky...I do have a 1/16" bit - need to find out just how small the screws are I guess....