thanks guys, thats all great advice. it gives me a lot {more}to think about.
I agree that a van system would be the best way to go, but with a budget and only a small run at the moment, i dont think i can stretch to that just yet.
the way i see it, by buying the static RO system and setting myself up with the main components of the mobile unit, i can work with a trailer or trolley system till a time when i have the money andthe run to justify switching to a van.
have any of you guys built your own trolly system before?