Sorry, but you should have a 3500 for those trailers.
I have a 97 xcab 2x4 auto and a 97 29 ft Dreamer by Alpenlite.
Your quad cab 4x4 truck dry weight, delivered is apparently 6787 lbs and my 2x4 is 5862 lbs. I weighed mine with full tank and the assorted add ons, jacks, chains, tools, spare parts and stuff and got 6395 lbs without the driver, passengers or fifth wheel hitch. 500 lbs of fuel and stuff is easy to put in the truck.
The "dry" weight and without options of the Alpenlite you desire is 10,075 lbs. This is no lightweight with the second slide. My 29 ft single slide has a manufacturer's dry weight of 8,170 lbs. Add 110 gallons of water, 15 gallons of propane, options, 3 weeks of provisions, and the wifes gotta haves the weight will build up fast.
On unloaded dry weights, your truck weighs 900 lbs more than mine and your proposed trailer weighs 1,900 lbs more than mine. Sept 30 I was on my way to Utah Canyon Lands for a 3 week trip. I knew I was loaded the heaviest I have ever been (firewood, 3 weeks of snake bite remedy, etc, etc). I weighed at a closed truck weigh station in Oregon and found:
4,050 lbs front axle; 5,400 lbs rear axle; and 9,250 lbs trailer axles. This included me, the wife, and the dog. The totals are 9,450 lbs truck and 18,700 lbs total. This 18,700 lbs total is 4,670 lbs more than the advertized dry weights. The truck is rated at 8,800 lbs GVWR and 16,000 lbs GCWR. I was over the GVWR by 650 lbs and over the GCWR by 2,700 lbs.
Assuming your wife packs to excess as my wife does and you carry a full water tank, your proposed rig would weigh out at an estimated 21,500 lbs Gross combined weight. I would estimate the truck weight at 10,800 lbs (900 lbs more truck weight and 450 lbs more pin weight). This is 2,000 lbs over your GVWR rating of 8,800 lbs and the rear axle is probably at the 6084 lb rating of the tires. This is why people put air bags in their 3/4 ton pickups.
A new 3500 4x4 with 4. 11 gears is about 300 lbs heavier than your current rig but has a GVWR of 11,000 lbs and a GCWR rating of 21,500 lbs. By my estimates you would be right at both these values 11,100 lbs and 21,800 lbs at max packing. Easy enough to throw out 300 lbs of misc.
In conclusion, I wish I had looked at these numbers 5 years ago and bought a 3500.