They've been around for long time just not in US. I've sent them e-mail regarding availability of skid plates for Gen 3 in US. Didn't get a reply. They are not cheap though If I remember right their front and underbelly aluminum skid plate run for about $600. although If you just price sheet of 1/4 aluminum this big you'll easily be over $300 just for material.

92 SR, 285/75R16 Yoko MT ARB locker GAST compressor AirLift 1000 MM10500 Snorkel custom rear bumper
02 Montero LS died protecting the master
08 PowerWagon (stock!)