Sorry I have been super busy everyone. Happy holidays! PM's sent. A few answers. First, I don't know how much the glass would be new. I purchased off a fellow reefer. I do know I spent almost $200 new for non-machine polished 3/8" glass for a 30g rimless last year and that ran me almost $200. I also know it was almost $200 to get the machined edges. So I would guess with this being 1/2" and starfire it would be about $700-$900. I will try and get a price from him. As far as building them, yes I do. I install, maintain etc but don't mention it because of sponsors here.
It's not necessarily difficult, you just need to be able to source the right materials and make sure it's tight when you get it together. With me building this for someone, I need to guarantee it as I'm at risk for it blowing out in their home.