Ah! Would you take a bag of carrots for it?
The anti spin pins just tap out, I think it's just a little roll pin?
The earlier non-pinned rods are shorter, which is why you need the spacer on those.
For a short period the longer rods were fitted without the pins. (about 2001-2002 time.)
All the pushrods are supplied with pins now and you just push them out if not required.