That's what i intended to suggest above. However, after some thought, i am afraid a serious issue would rise as to who pays how much. Some of the items are relatively scarce and it's difficult to settle a good price for them while other ones are more common such as the body and 50/1.5... Also, it's not clear so far, what works and what needs service, and how the cosmetic condition is.
The best bet would be if sbody from the seller's region would check it out thoroughly and pick the whole lot up and pay, and then we could buy the separate items from him on a friendly price😉 discussed prior to the acquisition of the lot.
I myself would be interested in the 50/1.5 sonnar and in some minor accessories as cap, etc. Further, one of the IIa bodies and maybe the 85mm nikkor /21mm biogon would be great too, although i'm afraid of how much they would cost me...
Another solution: We can friendly ask an independent rff member to estimate a reasonable price for each bigger item, like say, Honu-Hugger or Brian Sweeney who have so many contax stuff that they got shoppin' experience but they'd certainly not be interested in any of these😀
