Has anyone every thought to use Dura-mix to join the plastic and fill the seams? Well its called automix now but this stuff is awesome. There is different types for plastics, metal, FG, urathane, etc. But it works really well. I use it all the time and it bonds permanetly and is just as easy to sand smooth as bondo. If your gonna buy it get it from ebay because its the best for prices. Some sellers want your first born for a tube but its worth it.
That is one sick gauge pod by the way. I love it. It looks factory.