darren
Before you spend loads of money on a shiny new system, which will might become useless after a few months, I would build a small diy system, which is not going to cost much.
All you would need is a
water tank
DI Bottle with resin
Pump
Pole with brush head
100m microbore Hose and hose reel
With the above you can start up as a wfp cleaner, and its only going to cost a couple of hundred pounds.
If your wfp work increases which I reckon it will, then you can either add more equipment or invest in a fancy new system.