Coming! A 6x7 75mm...well with some hitches...

Here is an example... I've been bidding on this for two years.  Now I landed a lens at a good price and now the seller is telling me that it is not available.  So the reason is that the posted item was a lens that had already been sold and the one he can give me a replacement, I have no idea of its condition.  How is this happening to me again.   I've been fixing my own for quite a few years now and that is due to the fact that few lenses that I get have nothing wrong with them.  Example, A recent project I closed is a 67 135mm Macro that was filled with oil.  The owner or seller had sprayed the lens to get it working smoothly and as a result, contaminated the aperture blades and optics chamber.  That was six hours to disassemble, clean, reassemble and seal screws.  My bill for that should be about $200.  When the lens comes... will it be the lens I've been hoping for or any DIY project.