Hi,
I moved a Parker 27 superseal for 15 years from my boat dock to storage 30 miles away. Then in winter--usually around January-- every year I moved from New York to Florida--sometimes 2000 miles to the Keys.
I modified a Continental trailer (25-28 feet) as follows:
dual wheel with hardened axles--they will bend!
extra ply tires
one v bung in front supporting the area along past the depth finder--remember to lift!
two double bungs that run fore and aft--they will break!
support the area under the ballast
She will ride 60 mph and you will need double braking systems. I towed with a Big Chevy Suburban--. I got pushed many times so plan ahead! rig was over 8000 lbs.
PS you can't tie it down--it will shift but not much!
Marvin Kowalewski (USA)