ENTIRE SYSTEM NEEDED TO SELL

Michelle,

My condolences to you & your family.

Regardless of whether you find a dealer to sell on consignment or you sell here, you do yourself a huge disservice by trying to sell the system as a bundled package. It's easy to tell yourself that said plan would "make it simpler", but the reality is that packing and shipping will be the same work either way. The key is that this is a hobby of putting together puzzle pieces and the vast majority of potential buyers don't buy more than one piece at time. That's a combination of cost and a desire to understand each items impact before making another change. By selling a whole system, you eliminate >90% of potential purchasers. With such a small number looking to buy a whole system, you will end up taking far less than value or not finding a buyer. 
Generally speaking & oversimplified to give you an idea:
used gear sells for ~50% of MSRP. Dealers who buy wholesale will pay you ~20-25% so they can resell it for 50-60%. Selling each piece individually here might yield double the proceeds. 
There is also on this site a "blue book" you can subscribe to that tracks sale prices of gear. Last I saw it cost $50 to subscribe, but if you have a lot of pricey gear to sell, it might be worthy of consideration. Cheers,
Spencer

Michelle-

condolences to you and your family during this time.
Another agreement for obtaining a dealer/retailer to consult you and selling the system.  Keep me posted.

R.I.P. Mr. Parsons.

I have a different take.
Unless you really need the money - give it away to someone who will appreciate it and keep your husband's audiophile legacy.

Michelle, this really is a sad situation and I extend my sympathy to you and anyone else affected by Fred's death. 

Lots of good advice here, and I think a reliable dealer is the best route, but in case that's not an option, here's another idea though it might take the collective community to assist. Why not develop a list of the gear here and have the group discuss its value, hopefully trying to give you some idea of what it might sell for on A'gon.

Then, if folks here are interested in actually buying, we can collectively vouch for each other or maybe the price and ensure you at least are not being gouged by the unscrupulous. Not sure this is workable or if you even have the interest in going this route, but I'd like to imagine that the A'gon community can be respectful, helpful and community-minded. I know if I passed without provision for this, my wife would also be at a loss as to how to proceed and I'd like to think my gear went to good use at a price that was fair for my family. 

Regardless, we're really a small community, and it saddens me when any long-term member leaves us. Peace to you.

Patrick