I'm sure you will, sooner or later, find a firm to do stuff like this. I don't know where you are, but I live fairly deep in the countryside (the Welsh border) and within 10 miles I could find two or three firms to help. If you live near a big town, especially one with proper industry, it should be easier still. But – precision engineers are not cheap. They have serious kit and seriously skilled employees. And they are often booked up for months on stuff for industry.

So, my suggestion would be to contact a local group of model engineers, and ask them how to solve your problems. They might respond with 'I can do that, mate'. There are addresses of clubs for a start in Model Engineers Workshop. You are more likely to find help there.

Regarding the 'advantages' of CNC for your tasks, please think about it. CNC is a wonderful way to tell a machine what you want, exactly, and once told it can make dozens and dozens before you are out of the door. But setting up the machine takes time, and so does writing the instruction, and testing the routine, before you start on the real thing.

Let's see what others think, of course, but that is my answer.

Regards, Tim

Edited By Tim Stevens on 21/03/2016 15:57:17

Edited By Tim Stevens on 21/03/2016 15:59:31

As Tim says, Professional help is expensive. I had to get some very peculiar king pins turned up, with tapers in between top and bottom bearings, oil grooves and a long hole thro the centre etc etc. The first pin cost about 350€, the second 50€ and the next pair thrown in for 12€.
Most clubs will have one or more very keen machinists who would help you out for much less.
BobH

Best route might be finding a club where there is someone who would mentor you through the job so that next time you can do it on your own.

Neil

Try Paul Pavier **LINK**. He is a professional model loco builder and a member of his local club.