Mike..I find that mixing metalizers can be a lot of fun. As they are lacquers they mix well and if not over thinned spray fantastic!
I find that a couple of drops of magnesium, or alum plate work well...just play around!
On this one it was the blower that was a brass mix..I did the carbs with the interior color for contrast
any of the white water based glues will work,all dry slow,so clamp and set .....after setting some are stiffer than others,and wash all off with soap and water before paint!!