Funny you say that!
I was looking at one of the listed sites and noticed that it is NOT chrome at all! Its paint just as I used.
A "Killerchrome" kit is $40 plus a can of silver and some time and you will have the exact same results at a fraction of the cost. Same issues as far as durability though. Looks just as nice!
This is the info the site gives, http://gcartrim.com/Process.htm
Painted, just under vacuum!