when i changed to working 2 handed , i started with my original set up of 1 hose reel pump and controller and a backpack which i used , i,ve now got 2 reels 2 pumps and 2 controllers which on my round works best i still use the bpack occasionally , my advice would be 2 of everything , 1 wors out the back of the van and 1 from the side door , works a treat for me regards alan