I won't bore the group with the hassle involved in getting this far, but
suffice it to say I have had to find another manufacturer to fit a conservatory
on the new base constructed by another one.

To minimise cost, I am fitting the new rad and doing the electrics - quite
happy with that. But how best to fix and conceal the wiring and 10mm c/h pipes
on a wall which the new people are going to plaster when the plastic bit is
finished?