You could ask for some pipes to a LPG systems installer, the regasser uses the coolant to heat up, so they have some pipes to link it to the original cooling system.
Hi Andy, thanks for the reply and the links, those are the bits i need, i`ll try and order some later. I am replacing existing hoses. One of them split just above the jubilee clip, i was able to cut it off at that point and reattach it but it made me think i should do some preventative maintenance.