Looking for safe way to broker or sell the first micro-cpu

[SrSoftEng]

I have this set that comes from a Prolog Series 90 M900 serial#149 suitcase programmer/eraser/

Everything int he m900 is fully operational...everything.

I am plagued with defining a way to sell these chips from the M900. I can replace the chips into the suitcase and it works again. I don't know what is the best way to pass this along to someone for compensation safely.

There is a grey trace malaysia C4004 along with accompanying chips that the Prolog Needs. I need information on how to transact this safely. Ebay is out of the question for obvious reasons. IF this was a run of the mill set I MIGHT do Ebay, but now way with this set. Are these chips the real deal. They belong in a M900 and I have that too. What to do?

[Neon_WA]

nice setup, it original would of had a set of c1702s or C1702As to program the new eProms.
The ones that had labels are probably them. Best to cover the openings & keep out of strong light otherwise they may get erased.
are the markings on the bottom of the c4004 7509?
The C1702As any dates on bottom of them?