The BST2000 online specification is definitely wrong for the version Blackwoods sells. I guess it's possible there is slightly different versions kicking around.
On mine, up to approx 1mm of the diameter will be paint, so grinding the jack top is quite viable, just not as neat and tidy as the lathe.
The lathe task is very easy, so long as you can get access to a lathe. As you can see, you only require a small benchtop lathe.
I still prefer the Omega because it has a longer stroke than the Kinchrome:
Kinchrome - 120mm stroke + 80mm screw
Omega - 201mm stroke + 60mm screw
Scott
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