Wanted: 75mm f/5 Doublet from Unitron Spotter

I need a 75mm f/5 doublet of very high quality for a project. I believe that Unitron used to sell a 75mm f/5 richfield spotter; the objective from that scope would be ideal. Cell not required, but for the right price I would consider buying the whole scope.(But price IS a major object....)As an alternative, I might consider the 70mm f/5 doublet from a Meade ETX70, but it has to be much higher quality than what I have seen to date. Who has one, and what kind of deal will work for you? (Sell or swap?)
Thanks for your consideration!