Registered Mag and a tuned 686/GP-100 then.
Or 4 new Pythons and a pristine 6" Trooper mkIII/V.
While I don't think old Pythons will drop much in price, I don't think we will see them keep jumping up they way they have been. They may not be hand-fitted, but the new ones look cosmetically similar enough that they will satisfy at least 75% of the market for something folks can show off and say "I've got a Python!"
They should "Diamondback" the Cobra, with a $1000 price tag. I bet it would sell well.