I am in the same boat... but my hoses should reach.
With the reservoir attached to the shock body without offset wheels the tire will catch the reservoir on one side, but will just miss on the other side. With larger tires I would catch for sure! Fox seemed to be clueless on the shock tower interference on the F-250/350s. Same goes for some of the lift companies, except a few of the re-sellers suggest or include the remote mounting kit. Needless to say there are no tutorials on-line speaking of this problem that I saw, except here!
FWIW, as suggested there are remote mounting kits from a number of companies or you can just build one. I chose to buy the Pro Comp reservoir bracket just to save a bit of time on the install.