adseguy wrote:A better and possibly cheaper option: Scoprega Bravo Super Turbo Electric Pump
These Bravo's work great but I'd say max 3 kites capacity. You also need to mindful that you give it a rest between kites otherwise you can damage it by overheating. I've had one for years and it's fine for a few kites.
If you need more capacity maybe V's rig is better, but I'd put some sand wheels on it, strap on a cooler full of cold ones, and find a nice looking kite assistant to help hauling gear to the beach...and careful you don't over-inflate. We used to use scuba tanks when teaching in the Keys since pumping on a boat is a hassle. But there is the "process" of refilling tanks every day.
PS - If you have spinal issues it certainly is nice to have an inflation system. Pumping by hand IMHO just plain sucks...I see nothing redeeming about it other than it does not use any artificial energy. The Bravo can be recharged from a AC outlet or from your car battery so there is minimal (probably immeasurable) load on your petrol usage.