Looks like a nice platform to carry a lot of things, but I'm a bucket guy, too when it comes to my spray setup.
I carry my tank in the FEL, hook up the wires to the battery, have the wand looped along the FEL arm and sitting where I can get to it. When I'm using my boom I unscrew the end of the wand and attach a hose fitting that runs to the boom. (You don't want to do this on your grass /forums/images/graemlins/blush.gif)
I can either hold the wand handle "on" to get liquid down to the pole or flip the lock on. The boom is "U" bolted to the lower links so I'm not driving over weed killer until it dries, unless I'm backing up. It keeps it at a nice level, too. About 20" off the ground works for my uses. My co-op hooked me up with everything except the pipe to make the boom pole out of.
I like having the tank in the FEL in case there's still a lot of liquid in it when I'm done using it. It's easy to get it out and back into the bucket again in case there's still some weight associated with it.