Where to buy old Dan Ray photo sets

Hey, as mentioned in the subject. Does anyone know where to buy older sets of him? I'm especially interested in the ones he shot with Andrea Giacomi (https://www.imagevenue.com/view/o?i=12584_DSC...). If anyone could give a hint, that would be awesome. Thanks in advance!

He has a web site: https://danray-photography.com/

There are some sets for sale there and perhaps you can email him about others.