Thanks!
I'm doing all the engineering myself at the moment. Luckily it's not terribly complicated, just some pretty tight tolerances, and the fact that I'm building around something that already exists without having its original CAD data to work with is a PITA. I spend a good day and a half re-building the guts from scratch just to make sure everything fits nice and tight.
As a die-hard Alien fan, I just can't be happy about anything in that film, right down to the bit of fan service at the end that managed to take all that was cool about Giger's design and obliterate it. I prolly woulda though it was OK if I wasn't such a fan of the original.