Has anybody got experience of trucking a 34 that they could share?
I moved my 34' Seafarer (already on a custom built trailer) from Detroit to Manistee Michigan (about 200 miles) using a nearly new 1 ton Ford Diesel pickup. I would not want to go any farther than that without a Semi.
Unless the beam of your boat is less than 96", you will most likely need a Wide Load Permit for at least some of the states you will transport thru. (If the trailer tires are inside the beam of the boat, it reduces the stability immensely.) Each state has it's own requirements and will require it's own permit. Let a trucking firm handle that - hire a good one and you will save money in the long run...not to mention your sanity.
Tight knuckles and a pinched sphincter.