That is easily a 24' trailer plus another 2' in the v-nose. Probably dual 3,500 lb axles. I wouldn't be surprised, though, if it is a 28' with dual 5,200 lb axles.
I got a 36 foot skoolie with a DT 466 and an Allison automatic.I believe I can pull any size trailer I'd like now I think a 28' trailer will be sufficient.