Impressive!
I have a mere 2 mod 65's, one of which I bought new in the 1970's and which has fired thousands of rounds in matches and competitions during 70's 80'sand 90's up until 1997 when I acquired a Tau7 CO2 followed by a Morini 162EI and now a FWB 44 which I currently compete with.
I never regarded these classic mod 65's as collectables but I can see the appeal; quite an admirable collection you have. Well done.
Aubrey