I have had good luck with Ogden Chrome out of Utah. Shipping to and from them is included in the price and they send Fedex to pick up your parts. Turned around my 64 GTO bumpers in 3 weeks including shipping to and from Utah from Texas. Plating was very good quality in my opinion.
www.ogdenchrome.com
Advanced Plating is known to be one of the best but their prices are generally quite high.
Don