Would you do This TT Sub Ceramic Trade? Is so, what would you pay?

[LovesRolexes123]

I have 2 month old TT Sub Ceramic Blue new style (116613) purchased new by me from my AD. I have a lead on a solid gold T series (95/96) all gold yachtmaster, blue dial, in mint condition w/box and papers (foreing country papers) from a grey dealer. Very reputable dealer with whom I have done business in the past in fact. The blue dial on the YM is quite stunning, and I am seriously considering a trade. Would you do this trade (I DO like YG) and, if so, what would a fair amount of cash coming from me to the dealer be? (I won't taint things yet by telling you what has been offered, as I'd like independent input). Thanks!