I put all 68 files into CCDInspector and from that culled half of my images. Anything with an Aspect over 15 has been removed, actually turned out a lot better overall than I was expecting!
R: 2x200s
G:4x200s
B:5x200s
L:22x200s
So now down to 1.8 hours but MUCH happier with the result.
I ran a Local Histogram Equalisation on the background (256 radius) to enhance the IFN. Processed the stars separately this time, first time around I didn't see the point in putting time into terrible data
It is now even noiser than all getup but happier all the same.
Link to Astrobin.