Here are some of our sister fan and community sites:
http://avpgalaxy.net A site devoted to Aliens Versus Predator
http://spatcave.com/ A site devoted to building and selling props.
https://www.ebay.com/usr/sd-studios?ul_noapp=true This is another site on Ebay that sells props.
Prop builder in UK specializing in Aliens and Ghostbusters gear
Anything metal working or prop related Matty can make fabrication wise.