I have a friend who is building a 71/4" Gauge model of a LMS Crab 2-6-0 Loco and he is trying to obtain a length of copper tube for the boiler 8" to 81/4" OD * 20" in Length with a wall thickness 4mm or 5mm
He has a piece of sheet he could roll into a tube but would like to try and obtain a length of tube to save a bit of work.