do not know of Vanguard plating...
I do know alot about Gateway Xtreme...www.gatewayxtreme.com
His handle on VTXOA is handler....
He can chrome your parts, and if you have a VTX he has an exchange program that will limit your down time. I have alot of his chrome on my bike. he delivers a quality product at a reasonable price with great service.
hope this helps.