We were considering doing it ourselves. Did you find the same cost the other side when it comes to the re-rig of the mast?
I only used the yard at each end to haul the boat in or out of the water, and move the mast in or out of the boat. I did everything else.
On the de-rig, I brought the boat to the boatyard, got all the shrouds and stays ready to disconnect from their chainplates while the yard-guy was driving the crane over. When they had load taken up on the crane, I disconnected all the shrouds and stays, they pulled the mast up and out and laid it on some cradles in the mast yard. Cost a couple hundred bucks IIRC.
Now, *before* putting the boat under the crane, I had spent a day completely de-rigging the entire boat. Sails off, boom off, un-rigged any lines that ran from mast (or boom) to the deck, etc. In the case of halyards, clipped the snapshackles to the ring on the front of the mast, coiled up the lines and taped the coils to the mast, etc. All other lines photographed, de-rigged and labeled. Dismantled the mast-boot and made sure the mast wedges were able to move. Disconnected the "tie-rod" that connects the mast to the mast-collar below the deck. Disconnected all the mast-wiring and antenna connections. Unscrewed the decorative teak ring around the mast at the cabin ceiling. Oh, and dismantled the roller-furling drum so I could get to the headstay turnbuckle. At the end of the day, there was nothing connecting the mast to the boat except the shrouds and stays.
*after* the crane put the mast in the mast-yard, I spent a day prepping the mast for the truck, I labeled, removed and coiled the shrouds and stays and put them in the boat. I unbolted the spreaders and put them on the boat. I wrapped the headstay foil in foam "pipe wrap" and taped it to the mast. I removed everything from the masthead (windex, antenna, etc). Then I wrapped the entire mast with bubble-wrap and taped it tightly, on the recommendation of the trucking company - both to protect it from 60mph winds on the trip, and to keep anything (halyards, headstay, whatever) from shifting or slapping around.
So, yeah, it cost me a couple of days of time, but saved me several thousand dollars. And when the boat got to the other end I knew exactly how it all went back together, so ... at the other end, I had them put the boat in the water, I put the rig back together and when it was ready to go in I called for the crane.
$.02
Tons of info in my blog, if interested.
https://ericsonyachts.org/ie/ubs/table-of-contents-makana-blog.349/
The boat-prep stuff starts here...
https://ericsonyachts.org/ie/ubs/fr...uck-in-three-days-part-1-of-5-looooooong.348/
Oh, and PS - I'm in Everett, if you need an extra set of hands to help put the rig together when the boat gets to Bellingham, let me know.