It won't be a happy ending until you buy a new truck to tow it with. That is way too much trailer for a 1500 Ram. Never mind the fictional tow rating or the gcwr, you need to look at the trucks payload.
Seeing as there are 5 of you I'm going to guess you have a crew cab truck. Rams have some of the lowest available payloads of all the 1/2 ton trucks. Most crew cab Rams have less than 1200lbs of useful payload. The tongue weight of that trailer will use all of that, leaving nothing for passenger weights or anything in the bed. Check the yellow sticker on drivers door jamb for your trucks payload.
You're going to want to rethink this and research the ratings more. Less trailer or more truck unfortunately.
