Randy,
For my last two projects I've used Atlantic Coast Plating out of Athens, TN. You can find their web site easily on the Internet. They do a lot of "show chrome" work and the last two tanks they did for me are the best chrome work I've ever had done. The first time I used them they phoned me after they had my parts and talked to me about double-dipping the copper layer. If your tank has some significant pitting, the second copper dip fills in everything nicely and really makes the final finish smooth. I guess this takes "triple plating" and makes it a four step process.
I'm sure you'll be pleased with their work.
Rowland