Getting top dollar and doing no work is a tough combination. The no work part is easy though. Most places here in the US have auction houses that specialize in buying estates, failed businesses and the like and selling them off. Just do a Google search for nearby auction houses. Expect something like 10 to 30 percent of what you might get selling them yourself via here, ham swaps and ebay. But you will be done in a few days, whereas selling them off for top dollar would take months or years. You could also sell them cheap on those venues and get faster returns, but still measured in weeks or months and would involve all the work of marketing and shipping and dealing with the occasional crook buyer.
FWIW, the last in-person auction house that I dealt with charged the seller 30% commission and charged the buyer a 20% "Premium" plus sales tax. There a number of flippers in the area that will take your stuff and sell it on E-bay and charge you 50% commission but in my experience they usually don't know anything about the items that they're selling or how to test them or how to even describe them so they get
far less than market value of the items that they're selling. Also I know several large scale E-bay sellers that get very good TE but that refuse to test it or to even turn it on and the result is that they get FAR less than market value for their items.
Catalina is 100% correct; no work, not willing to ship and getting anywhere
near the market value of the item is an impossible combination.
In my experience and assuming that you're selling on Ebay, anything that turns on and the buttons do something and the display changes but is otherwise untested is worth about 20 to 50% of the market value. Things that won't even turn on or that the seller won't test the keys are worth about 10 to 15%. And if you don't have a few good photos, the value drops even further. AND if you won't ship; well, the value is near zero. Let me make this 100% clear, there is almost NO market on Ebay for specialized items such as expensive TE that can only be picked up in person. If you're selling anywhere other than E-bay, I wouldn't expect to get more than 50% of the value that you could get on E-bay under the same conditions. That is for individual items, if you're selling it all as a lot them you can expect to get for
far less.
That's just the way that the market for TE is.
PS to add, when I was selling TE on Ebay I could get nearly double the price that most other sellers got simply because I was willing to ship things to Europe and other overseas areas when most sellers did not want to go to the trouble of dealing with the additional paperwork. The point is; you aren't willing to do what's needed then you're not going to get the highest price.
There is a lot of work involved in getting the best price for TE and if you aren't willing to do them
all, i.e. Testing, Photographing, Writing good descriptions, Dealing with Questions, Packing and Shipping (including overseas) and Dealing with E-bay and Paying their fees, and occasionally dealing with the Fraudsters then you're not going to get the full value of the items.
My 2 cents worth,