I ended up getting a similar setup to what you are contemplating. Dodge 3500 SRW/6 sp/full box ( 9900# ) for the truck 23,000# total combined. An "appalachian" trailer 24' with dovetail, deck over neck 14,000# weighs about 4,000# empty. I have the full bed. I do need to be carefull at greater than 90 degrees, I cant really jack it around to much. Without the deck on top of the trailer neck there is would be no problem with shortbed and a gooseneck ( unlike travel trailers). IMHO I do not think the gooseneck is a poor choice, this would be proven by towing the same load flat VS gooseneck. I towed a john deere 4600 with a 7k flat car tailer. Only 3550# right?? NOT! after the FEL and BH I was close to or up over the limit of that trailer. White knucle ride to the dealer. I was more comfortable with a 13,000# trailer with the gooseneck on an interstate than the flat trailer at 40 MPH. Shortly thereafter I got the gooseneck. Only paid a little over 4 K$ and I picked it up in ohio where they make it. They are a "low bidder" brakes on both axles though- insist on it. There are better ones out there, I only tow a few times a year so the time savings of the good and $$$ features did not make any sense.