After transporting the tractor home and having a good look at the damage and missing parts, it was decided that a near enough non original option was the way to go.
One of the first jobs was to remove the blacksmith "repair parts". The frame around the upper grill was a surprisingly good fit held on by nuts and bolts. The door butt hinges were welded on, for welded just imagine bird poop splatter, as one hinge had already parted company.
The frame and the upper grill. The bit of tin at the bottom of the grill replaced the original hinge mount which had broken away.
The box sections which replaced the lower grill were only firmly welded along the front face and were quickly removed with the help of a bar and G clamps. Some of the welds were good, others bird poop. Almost as if two different people had been at work.
The engine was lifted off using the same bar. The heavy welded on plate which supported the box sections can be seen. I cut most of this off before realizing later that I could have reused it to mount the new lower grill.
The tow bar extension, seen on an earlier photo was removed, two bolts and more poop spatter, to reveal more damage. The original tow pin hole ripped out and the plate cracked for about 1/2 the width along the bend. Could have been repaired but I went for a different option of which more later.
After spending ages, on and off, trying all the usual ways to remove the well rusted on steering wheel, I resorted to cutting a slot in the hub and used a wedge to slightly open the slot. This freed the hub from the shaft. Other options suggested on various forums were a lot more drastic.
Once the wheel was off and after taking lots of photo's to help with reassembly the major dismantling started.