[njk53]

A 2500 series Chevrolet with a 6.0L V8 towing capacity:

2WD w/3.73 Axle - 8,500 lbs.
2WD w/4.10 Axle - 10,500 lbs.

4WD w/3.73 Axle - 8,100 lbs.
4WD w/4.10 Axle - 10,100 lbs.

A 3500 series dually/diesel w/4.10 Axle is good for 15,000 lbs.

My brother and I had gone through the same thing you are going through.

We bit the bullet and bought a nice used Chevrolet 2WD diesel dually crew cab pick up with 4.10 axle and are glad we did. We pull a 35ft. goose neck trailer. It has plenty of power and braking capacity. We weigh around 10,000 lbs, that includes car, trailer, and equipment.
The added safety and piece of mind was well worth the money.