Really depends on the tow truck driver or the tow company.
Yes, a truck and TC will fit on a flatbed, yes, it is high, no, it is no big deal.
I had a Class-C that got pulled by a 1-ton regular tow truck. We rode in the cab with the two driver, and left people in the camper (officially driver did not know about them, but he knew).
The front wheels of the tow truck would come off the ground when we hit bumps, but we made it off interstate and to a shop. We got lucky to get a nutty driver that time.
Other times drivers refused to tow.
I had giant 4x4 truck with TC and got towed on a flatbed, but waited days for the tow truck to show up.
Do't tell them "truck with truck camper", just tell them big motorhome, and avoid the confusion. Tow companies hear "truck" and then stop listening, and send a 1-ton then get there and realize, no, it is a camper basically.
or
Just ask for a big flatbed and tell them "it needs a flatbed" but dont try to explain, or they will not listen and/or get confused and second guess you and send a 1-ton again.
I had same truck towing a camper and got a flatbed and he went out and bought a 2 inch ball and towed truck on flatbed and towed trailer.
I have since woke up and sold the Ram, junky Dodge truck with a great Cummins engine, but junky truck and trans.