Decided not to burn up the original 18xx HRD crankcases as i would be milling the original oilpump away, welding etc.
But bought a new set from Molnars, its looking really nice, and luckily no old number on them.
In time i will ask Simon for a number, so i can register the whole set.
I will do up the old cases, line bore them, OS bearings, new spindles, pump etc. and put is up for sale