How big is the storage bed?
I don't know the space needed for spraying equipment.
I see people all the time wishing that had at least a 6x12 to 7x14 trailer to fit all their landscape equipment. So i doubt you could fit spraying and LCO stuff on that truck.
I think that being LCO's don't mow and spray at the same time carrying around all that stuff is only going to eat up a lot more gas.
How about an open trailer that you mow with, then unload and use the same trailer for the days when you spray?
Or if the spray equipment is to heavy to load and unload then how about a trailer set up for each?