This is a bit delayed but I owe a big thanks to Chaz who has let me borrow his reference surface. It has been really helpful and I am not sure how I would of progressed without it. I tried to pick it up in a Fiesta, which unsurprisingly didn't work, thankfully it came on a pallet.

I've been making slow progress, I settled for an angle grinder for the cutting of the cast iron blocks, it took forever... I have managed to rough scrape all the surfaces for the column.

Click image for larger version.  Name: 20180825_173005 (2).jpg  Views: 677  Size: 680.4 KB  ID: 24898

These blocks of cast iron are the ones highlighted below.

Click image for larger version.  Name: Highlighted.PNG  Views: 508  Size: 25.9 KB  ID: 24900

I have also scraped the main cast iron block.

Click image for larger version.  Name: 20180826_163337.jpg  Views: 531  Size: 464.4 KB  ID: 24899

They're not perfect but within 0.03 mm. I am making the mold and getting the inserts ready, I plan to cast the column next week. Just trying to work out how to drill 18mm holes through the 2 inch cast iron blocks, my drill press isn't up to it and I really don't want to have to buy a mag drill, I don't know if anyone has any other ideas?

Nick