I've seen one in use, mounted on a four-wheels sack-truck, with 30 metres hose and reel bolted on top. It looked very professional; I thought it was 'shop built' and this particular day was the first day he was using it.
But the next day, I saw the same guy back using his back-pack.
(Alan, if you read this, please comment).
But I reckon you'd need a van to carry it. It could be okay as a small tank for a car.
There's no problem with a 60 psi pump, it's how you're going to use the tank.