I'm in the middle of rebuilding a Cyclone that was given to me and wanted to know how much paint i should put on it to finish it off?

It is glass coverd balsa and i have started to add primer to the airframe.

Should the final colours be just dust coats,enought to see the colour or abit heaver so it stands out more?Also should i add a clear coat to the finished plane as id like it to look glossy.

Ive been told that paint adds alot of weight but i dont want a sad looking plane eigther.Any advice?