NIevo

We previously had a 2004 Tahoe that was ok, but started having a lot of little issues and was getting up over 100k. Picked up a brand new Durango R/T in 2015 and love it but with 4 kids, lots of sports and quite a bit of towing it's getting a little on the small side.

Recently we've been talking about getting into a bigger SUV and the Suburban/Yukon is obviously at the top of the short list. I've done a but of researching and looking around but have several questions pertaining to our usage and any insight from owners.

We aren't huge on super fancy interiors with all the bells and whistles but we wouldn't turn one down if it had it. Reliability is important which is why I kinda ruled out 15's and leaning more toward '17's and up. Can't afford a brand new one right now and would like to keep it around $40k or less. 4wd and towing are 2 things of most importance. Some question:

What towing options did the vehicles come with in recent years? I know they are rated at 8300ish lbs but anything change that with different options or make it easier/harder? We have a 27' TT that sits at around 6500-7k when we tow.

Any packages to really watch for and try to get or avoid?

6.2l would be great but think it might be out of our price range. Does the 5.3l and tranny in these respond well to mods if we go that route and want to pick up a little extra power for towing?

What are people seeing for real world mileage with the 5.3 or the 6.2? Our Durango is amazing and with the 5.7 will consistently get 22-23mpg with all of us in it but quickly drops to 9-10 when towing.

Anything else to consider when looking or that we should look at?

Thanks!