Sorry guys,
If Steve could get a system at a competitive price and guaranteed delivery/collection, why shouldn't he buy it?
I looked on their website and apart from the controller (which looks like a Varistream in a different format) everything else is available - Flojet/Shurflo pump, R/O, prefilters, di vessel etc. from other sources. If the worst came to the worst, then he could fit a different contoller.
I am I not seeing something?