Just about all of mu commercial customer have at least one ZTR with a spray tank fitted above the engine on a shelf ( PIA when it comes to fin cooling ).
Best one had a shelf with a couple of keyhole brackets that slotted over the rops bolts ( folding rops ) and a pair of spring loaded legs that engaged with the rear bash plate.
I fabbed up another using thick rubber blocks on the rear legs .
From there it is just a matter of getting power from the battery and adding a switch.
A couple put extensions to the control arms so both could be held in one hand leaving the other free to spray.
All of them are spraying Glyco along fence lines thus they can spray & mow at the same time
