This may cost quite a bit to do....
i recently looked to machining a alloy bulkhead for an Academy Sbv2 4wd buggy. You can find out about this on the net, but this part is renowned for breaking due to impact and loads form the suspension pins.
The part had to effectively be reverse engineered before I could do anything. Therefore, I approached a company who would scan the object in detail (using computer aided tomography i.e. CT) and then provide a image file that I could give to a machining company to manufacture the part.
I was quoted £250 + VAT for a part that is around 6cm..yes, it had holes and depressions elsewhere but I wasn't expecting it to be so costly! This is of course excluding the cost of manufacturing in limited batches in alloy.
Needless to say I am shelving this for now...although I may approach my local hospital to see if they could CT scan the part for me!
However, I am not too sure if the images would be useful and they comprise of units called voxels. Do machinists use images in such a format?
I'd be interested to see how you get on. Maybe if you have the time to simplify the design and provide precision scaled drawing you could save.
Good luck.