The VW engine splitter is a good design. there are a few plans on the net for those who are willing to do the work. I priced out the steel and when I found this unit, I really felt I could not do better.
My cost of steel was like $211.00, engine, new, was $550.00 Then there was a cylinder, that was $180.00. Then you need a pump, valve, tires and hardware. All in all, way over the price of the powder coated unit I purchased.
Warren, I was sort looking forward to seeing you in London, sorry you can't make it. Tell us about your barn or garage.