Well that is just way to much trailer for a 2500 you need to go up to a 4500 or 5500 is probably more like it
I own a 37ft raptor grosses out between 16000-18000 and that is about the maxium that I will go with a 2500 and some people will probably say that is to heavy :-{}:-{}:-{}:-{}:-{}
What you both need is an FL60 or FL70 to handle that much weight. MHO of course , and a little experience.