You could keep the vintage feel with oNE of these add a Hurst decal from a model car kit and 80% wouldn't notice it wasn't vintage.
Value priced ebay one:
http://m.ebay.com/itm/271994181944
Modern Moroso
http://suprasport.com/Moroso-Line-lo...Kit_p_252.html
I think these could pass for a vintage feel.