Have you tried the big name folks?
Indian Engineering John Bivens/Jerry Greer Engineering
Hopefully our Technical Director "Red Fred" will have some valuable information for you.
If you are looking to do it yourself, then start going to some car events in your area and start asking about engine machine shops. Then start visiting them till you find one that you are comfortable to work with that is willing to take on the work.
Same for a plater. It is my understanding that you will want "Electroless" as it will give you a more uniform plating over the original "Electro" which would deposit more plating on the higher spots and less in the depths of the fins.
Sorry I can't help much more than this, as I am going thru this for my first time also.
You might also try the Virtual Indian yahoo groups site.
Last edited by Knotthed; 08-13-2012 at 06:08 PM.
Reason: Added VI information