I originally started out with a trolley system from Peter Fogwill at Aquatec, but it has since mutated and grown into a van mount.
So although I didn't strictly start out as DIY, by the time it became a van mount I'd put it together myself, fitted tank and cage (supplied by Peter Fogwill) Hose & reel...er...I've forgotten who supplied the first one! (full size hoze & 100m reel), 2nd hose & reel (Microbore) courtesy of Gardinerpoles.
Pole is now the Superlite....
I might fit a Heath Robertson style of water heater (just an immersion heater) to see what using hot water is like, then if I'm impressed I may well think about getting an all singing, all dancing system from the likes of Ionics or Omnipole....or whoever else may be supplying and fitting them by the time i can afford one!
But first off, rather than outlaying several thousand quid, I'll splash out £30 on an immersion heater!!
As the months pass, my system is slowly but surely mutating all the time.
Ian