Why not send Joe an email? He's the master of attention to detail and dress up ideas. I believe he told me those little plug covers are a motor cycle item.
I did not know where I got that pic from, but if you tell me who is Joe I would love to ask him and pick his brain.
Joes build on his motor is really tight. He has done an outstanding job.
This is my first build and I am taking ideas from every one only when it makes sense. I gotta hand it to the stovebolters here, you guys have helped me a lot. I really do not know how you guys did it without the internet, youtube, & forums like here before there was the tool.