check out www.jemsite.com. there are banners on the front page Some sites offer JEM style bodies.
those on jemsite.com definitely aren't budget though. they're mostly custom shops that do swirls and JEM bodies. probably cost the same if not more than a standard Ibanez.
TGM has a Jem copy that's if you want a real low budget one..
and that lion claw rooted cavity (something) for higher range of tremolo. lol.
Lions Claw - this is the scooped out tremolo cavity and was named such for it's apperance that looks like a lion's claw carved out the cavity edge. It is the six scooped ridges on the front of the body by the fine tuners of the tremolo. This is cosmetic in nature as the standard routing allows its tremolo to be raised as well as lowered. It does not improve pull-up or tremolo usage on Ibanez guitars. Vai did this originally on his non-floating trem "green meanie" to allow for pullup... the cosmetic feature was added to all JEMs but the functional feature was added to all Ibanez double-locking trem guitars made after 1987. The Lions Claw is featured on all JEMs but is not found on Universe guitars.