You can put an adapter on a tractor and then tow a fifth wheel a short distance. RV dealers sometimes do that.
You can see it done at 5:40 in the video:
5th wheel hitch adapters are available from: https://steveshitch.com/the-hitch/5th-wheel-hitches/
Fifth wheels weight
Average: 13k lbs
Big ones: 24k lbs
Tow them with a 1 ton truck
Towing terms:
Related articles:
Tow 5th wheel with hitch adapter
1 ton trucks towing capacity
Towing 5th wheel with lifted truck
https://www.autoguide.com/auto-news/2014/07/know-towing-fifth-wheel.html
Fifth wheel are huge and look like this:
