Then I suggest building one, depending on how they will move the boat about. If the cradle can be put in place then the boat placed into it with a travel lift, then since the weight of the boat is on the keel, the cradle is merely balancing the boat. Or contact a trailer manufacturer. They can certainly build a cradle if they can build a trailer and there are many near you. I bet it would be perhaps $2K. I couldn't find many places when I searched for a cradle builder, although any boatwright should be able to swing it.
Also, don't forget Craigslist - in Grand Rapids
"well built of treated beams and angle iron will handle up to 10k load and up to 35ft boat, modifications can be made for any sailboat size or weight. on trailer for easy transport, trailer can be purchased if needed asking 1200.00 for cradle and 500 for transport trailer delivery is possible. email call or text"
well built of treated beams and angle iron will handle up to 10k load and up to 35ft boat, modifications can be made for any sailboat size or weight. on trailer for easy transport, trailer can be purchased if needed asking 1200.00 for cradle and 500 for transport trailer delivery is possible. email call or text
https://grandrapids.craigslist.org/tro/d/sailboat-cradle-on-trailer/6655526192.html