Everyone, thank you for the encouraging comments!
This was done with a basic soldering iron with a chisle tip. Hard to use as there is no heat control. I want to make a rheostat; look closely and you'll see where I also burned through. Careful 'plastic surgery' has hidden it.
The only reason I used this method was the Porsche turret has so much curvature. I didn't feel confident applying it with putty.
As I build this beast--it comes with a substanial interior--I'll post more.
Thanks again.