Finally installed the driver side pop-out window which is a bit of a bollox job to do without damaging the outer seal. Not the best VW design and near impossible to install with the plastic anti-rattle pieces (they have been left off for now)
Next will be to screw the latches to the 'C' pillar so it's all sealed up. I am told the carpet is now in Australia for the car so that will be next focus and then I may replace the pop-outs (both) after that with my NOS set including the anti-rattle pieces if I can. Not a job I am looking forward to. For now they pop out's can remain latched closed and they can't rattle!