Disconnect one radiator from heating system and cap microbore supply pipes.

Plumb in one new radiator, already fitted to wall, using standard 15mm copper pipe. This requires drilling holes through an internal brick wall to access the nearest pipes, roughly 2m away, as well as fitting the tees to add this radiator to the loop.

At a guess I'd say the extra materials required would be the stop ends, tees, pipe and brackets to support it.

I'm happy to drain the heating system before you arrive to save time.