I don't know just how good a deal you got on ebay but there price seems pretty low on KEH when they have them in stock. They may even take the one you have in trade to lower the price for another one.
It sounds like you like me with the desire for high end photo equipment but not a lot of $$s to spend.
How do you like the 1D when its working right? I started with a 1DIIn. Now I only like the 1D line. I don't mind the weight.