@Justin Thibodeaux - Hey Justin, I picked up the linear actuators used in this build from
https://www.firgelliauto.com/
They've been very responsive, and should be able to help you out with your ideas if drop'em a note. While my particular actuators aren't all that quiet, I only use them once or twice a day a few times a week, if that. Usually it's a matter of having to get something into the reef (placing a new frag or a bringing in a fish) or remove something (a coral colony or some such). So noise really wasn't one of my determining criteria - function was.
Thanks for the compliment! It was lots of drawings, research (search engines, email, and phone calls are your friends!), and determination to get it to where I felt it would be stable, support the weight, and more than anything else, be able to raise the lights out of the way so I could access the reef from anywhere around the aquarium. The support on the "left" side of the aquarium is a 2 X 4 lag bolted to two wall studs. This provides stability and anti-torqueing. This allows me to use the ceiling trusses for main weight support, and I "over engineered" to support more weight than planned.
If you have any questions on how to approach a build like this, please don't hesitate to ask. It was fun!
Cheers,
Ray