I do real 24 carat gold plating for a long time now. As it is real gold you will not have any issues with getting dirty or black surface. It looks amazing! I will have some samples on the Expo in Chicago.
For the one who don't know me - I'm Mirco from Germany, reproducing playfields for example for AFM, MM, STTNG, WH20, FH, TZ,...
You will find some pictures on my website - sorry for the bad layout - we are working on a new version. The pricing would be the following in US$ including shipping:
Lockbars - glued together, so no welding points
Normal Body polished - chrome finish 125$
Normal Body polished real 24 carat gold plated 145$
Wide Body polished - chrome finish 145$
Wide Body polished real 24 carat gold plated 165$
WPC/WPC 95 Siderails polished - chrome finish 85$
WPC/WPC 95 Siderails polished 24 carat gold plated 240$
Complete Set of WMS legs real 24 carat gold plated 240$
Complete Set of Stern legs real 24 carat gold plated 250$
BB hings and Stern guard siderails are also available in gold, please email for availability and pricing.