baja rack
Adventure Trailers has sold these in the states for some time now I believe.
A friend has ordered the one for the FJ80/100 and it seems to fit just fine on the long wheel base G.....they use pretty simple rain gutter mountings that are adaptable.
I agree, I don't like the curved shape for the G, or to tie to, but they are pretty inexpensive, not sure about the quality though....