Right...got some materials, so jumped in at the deep-end and made some drop-outs. Took me 2 hours to get the Mill and everything set-up. Later found that King fun bolts won't quite clear the top of it, but I'll make the Mk.2 with some adjustments. This was just to get my eye in, and first time with a milling machine so don't be too harsh
The final will be revised with the following:
The lower un-milled section will be removed
Snail-cam hole will be added
The slot for the axle will be moved further inwards, and slightly further down to allow Chris King fun bolts to clear the top lip.
The area on the right of the 45* angle will be also milled to fit inside the tubing.
All areas of the dropout will be chamfered and polished.
Cheers, any suggestions welcome