![Evil or Very Mad :evil:](./images/smilies/icon_evil.gif)
Regarding the vision port, just glueing it in place does nicely. I was going to point you to Ragnar Arntsen's beautifully animated version, but the pictures are all gone thanks to a picture hosting provider we used to rely on in the past. Luckily, the forum accepts pictures directly these days.
![Cool 8)](./images/smilies/icon_cool.gif)
Cheers,
/Christoffer