If you wish to wait for a new version of the GMT II, then you could end up waiting for quite a while. Therefore I propose to go for a Sub LV, if this is the sportwatch from Rolex you like the (2nd) best. The Sub LV is indeed a bit nicer than the TOG. You should be able to find the LV for less money, as compared to the price you have been given by your present dealer.

Btw, welcome