for at least a dozen years I parted our personal estates on Ebay. Not clothes or anything else, just their hobby stuff. So much fun, I shipped stuff all over the world. But it is LOTS of work, and all that stuff has to come home to be worked. With one quilter 1/3 of my living room was stacked with her stuff. It isn't something I'd do again, did I say it's lots of WORK, and I'm retired now, but if you are thinking about taking on the job out of sympathy or misplaced guilt or whatever...NO is the word I'd offer.
Major museums might take a AQS winner, but if you've ever worked with or volunteered for any local museums please believe me, they hardly have any room at all of true antiques, let alone a bulk estate delivery.
HE would need to handle it, but not long ago there was a post on the board here about buyer takes ALL estate sale effort, I think in Florida. You could suggest he try that. A local person might be willing to make the effort to flip it on etsy or where ever.