Another rainy weekend so I decided to have a crack and learn a bit more about processing.
1) Load up each image in registax and set wavelet slider #2 to ~20
2) Load up in photoshop, despeckle, set the levels "input levels" to '1,1.00,190', set contrast +20, brightness -20, then a slight despecle again through dust and scratches with a radius of 1 pixel.
3) Load up in astraimage, convert to greyscale, run a LC deconvolution with 5 iterations at 1.1 setting, then combine RGB, set gamma to 0.7.
4) Screenshot it so I can save it in MS paint

Open in photoshop, save for web.