Hey I am going to be getting back into pulling dry vans and I am wondering which way would i be better off for my return on investment. The truck I have is a midroof freightliner columbia with no air deflector on the top and I will be purchasing my own trailer. Would I be better off to get a nose cone for the front of the trailer or spend the money on a roof fairing. I am planning on keeping this truck for maybe another 2 to 3 years

I'd go with the roof fairing. The roof fairing will pay for itself pretty quickly.