well, i called hyde and they mentioned that the wr20r/x is a bastard child of Yamaha's so the wr250f skidplate MIGHT work.
so i bought a sheet of 3/8" x 2' x 4' UHMW (ultra high molecular weight) and am going to give it a try fabbing my own. i'll even have some left over to try to make master cylinder guards and maybe caliper guards. good, it's not going to look. functional yes, beautiful, no.
or... i might just screw it all up and end up buying a hyde after all.
i'll post pic when (if) it's done.