Best of luck. If I did not shoot Nikon, it would be Oly's for me
Personally, and based on your description, I would go ahead and sell the D700 and remaining lenses. I don't like keeping gear I don't shoot either and in theory you can always reacquire it used for approx. same price you sell it for now. Plus I think the D700 will decline in price over time whereas right now there is definitely a shortage of them!