I'd check a couple of options for pricing: (1) Bikeflights.com or shipbikes.com or (2) this might sound crazy but price out shipping the trainer frame separate from the resistance unit. The frame might be cheap to send since it's fairly light but just somewhat bulky, and the resistance unit is fairly small but heavy, so the smaller package may drop the price drastically. #2 might not work, but I've sold & creatively shipped a ton of stuff to save money on that end. If it's across the country, USPS rates may also be your best bet.
I have a Kurt kinetic road machine trainer that I want to sell and haven't gotten any bites locally. I am thinking of putting it up on ebay but that will require shipping. Has anyone done this? Recommendations?