Re: is the RGT42FM a real good guitar?
if it's the model with the transparent red flame maple top (RGT42FMDR, as pictured), then the body wood will actually be mahogany, and it should be fitted with the edge pro II bridge and INF1 and INF2 pickups. the earlier slightly cheaper variants had opaque finishes, basswood bodies and lo-trs II bridges. neck construction is the same on both: 5 piece maple/walnut.
is it a good guitar? i love mine, but i do notice it's increased body weight compared to my 4 other rg/jem. edge pro II is a decent bridge, with the exception of a noticeably stiffer feel and a slightly inferior arm holder.
and, yes, i think you're getting a great deal. i paid around $1500AUD for a new one in 2003!