Welcome to the forum. You've started in the right place for real world information and advice.
You are well advised to ask the questions you have posted and you've found the correct place to begin. However, there is a little more information that would be required to determine if your tow vehicle can safely pull any trailer/RV.
There are multiple threads about this topic, many posted as stickies at the top of this sub-forum, but the basic points to consider are:
1. GVWR - Gross Vehicle Weight
Rating (Both the tow vehicle and the trailer have this rating. Check them both.)
2. Tongue Capacity - this is the capacity of the tow vehicle
3. Hitch Weight - this is the weight of the trailer/RV at the tongue
4. GCWR - the combined weight of the tow vehicle and the trailer (loaded)
5. Trailer weight - obviously, the weight of the trailer/RV (true weight)
6. Towing Capacity - how much weight the tow vehicle can pull
7. Payload - this is the weight that the tow vehicle can carry in the bed-usually only relevant when considering a fifth wheel
I have personally "killed" two F150's by using them to pull my horse trailer that was over-taxing their capacity. I have learned, in my opinion, that most 1/2 ton pickup trucks are nothing more than glorified wheelbarrows. Be careful with your new truck and don't do what I did, pulling a load that is so very close to the vehicle capacity that you're continuously straining it's overall ability. If you do, you'll seriously shorten the life of your truck. You need to look in your owner's manual for towing capacities and consider the engine and transmission as well as any towing package that may have been added as an accessory.
I haven't looked at any of the capacities of your new truck, but I doubt it has the juice to pull a 2500 series Bigfoot without maxing the towing capacity. Just my opinion and as I've said, I haven't looked at your specific vehicle, but I'd check it very closely before you put any more money into this issue without careful study. You would do well to spend a lot of time studying this issue and read all of the stickies at the top of this part of this forum relating to towing and trailer weights. It may well save you a lot of money and frustration in the long run.
Also, it appears that there are several active threaded conversations going on right now closely related to your specific scenario. Look through all of the threads on this sub-forum and you may find a lot of useful information including valuable questions being posted by others. Read this one for sure: http://www.fiberglassrv.com/forums/f...ons-86265.html
Lastly, once you've purchased your tow vehicle and RV, find an empty parking lot and get some water bottles (put some water in them to weight them down) and practice driving in close quarters. You can actually learn a lot about backing and turning if you visit somewhere like Walmart late at night when their lot is almost empty and no one is around to watch you goof up. The first time I pulled my new horse trailer I hit a curb and bent the wheel well. I've learned that the secret to towing & backing is to only go as fast as you need to, which translates to "slowly." Water bottles and a lot cheaper and you don't have to worry about fixing them. Take your time and practice. Your time spent practicing will pay dividends in the long run when you get to your campsite and you're trying to back your camper into a tight spot with everyone from the campground watching. Happy Camping!
bill (not laura)