SELLING IT ALL

My heart goes out to you for your loss. I'm sure your husband must have had a good friend that had similar interests. Contact him/her and see if for the honor of keeping an item to help remember him, maybe he could help you in the liquidation of his system. Maybe some of his friends would like the opportunity to own some of his life's hobby. 
    Regards, Tracy.

I strongly suggest, as others have, contact his friends and/or ask around for the name of an established stereo equipment dealer who also has experience with audiophile (not BestBuy or other big box store) equipment. For example: there is wonderful salon in Baltimore Md. called Soundscape. I have purchased used and new equipment from them since the 80s. The business is family owned and has been a part of the Baltimore scene since the 1930s. The store can be found, here https://www.soundscapemd.com/
Once at the website, the telephone and email address in included. I suggest you ask to speak with Mr. John Dorsey, family member of the founding business and an excellent resource. Feel free to mention my email address to him          stjamesrd@gmail.com

@troidelover1499

Who's bringing negativity?

I am serious.  I haven't considered what might happen if I am incapacitated.  I don't want my wife dealing with the likes of you or the other sharks circling this post.  It's a reasonable consideration given the thread.

I would want my system to stay intact and go to a friend that could appreciate it.

One way to expedite the situation is to use some technology, like having a FaceTime call with a knowledgeable member. This would quickly establish values and help in categorizing items. I’d be happy to spend 1/2 hour on a call and have zero interest in buying any gear.
I’ve been buying and selling items on this and other audio sites site since 2006 I’d be happy to offer some advice and ideas.