If you can get $800 for it locally and you're happy with that, then take it. You could try to part it out but it's unlikely you'll make alot more money and probably not enough to make up for the effort of taking it apart, listing each piece, packing and shipping and a million trips to UPS and deadbeat bidders etc. Don't get me wrong, I love ebay. But if you can sell it whole for a decent price where you live, I'd do it. The other thing is shipping a whole ATC will be $200 for sure and you'll have to crate it and deliver it to the airport or to the trucking co and it adds to the cost. So is someone going to spend $1000 or more on your ATC? Maybe not.