Years ago I bought a book with title "Mechanisms and Mechanical Devices Sourcebook (2nd Edition) by Nicholas P. Chironis and Neil Sclater".
I found this book pretty useful.
The 5th Edition with Neil as the only author is available from amazon.
Renzon,
I am not an expert in turbine repair. I did layout the machine shop of a outboard motor factory many years ago. Perhaps the follow example can give you some insignt.
We have to machine seven different version of aluminum housing for electronic power regulators. From manufacturing point...
It seems to me that you are very worry about electronic stuff. Perhaps there is some potential danger of explosion. If this is the case a pneumatic-pneumatic positioner may be your best choice. There is some commerically available spool valve that may be used for feedback control.
My employer...
I think it is really hard for me to give you any advice as I do not know the production nature of your machine shop. Is this shop normally involve in job shop production or batch production. Is most of the thing they make is similar or very different in design? Is it possible to group products...