where are all pro painters when you need em...
if you paint the insides first ,you will have a lot of masking to do if you sand through primer and have to reshoot. I you block first, be carefull not to scratch anything. I took the middle road. Primed and blocked up to 240 grit ,took out the bodyparts and painted insides, put it back together and blocked.
If you use metallic paint, you use clear to get shine. If you don`t use metallic you could go with no clear, but it will look different.
I made a couple bars for inside the springs, about a half inch longer than the spring in rest. don`t have pics, sorry... I used a flat bar appr. 1"x 1/4 and cut out a V on both ends. Then twisted the bar a 1/4 turn and put it inside the spring. hope this helps