I have a 60"x18" frame It would need to be skinned: my guess is your tank is 48"?
You could always add a display fuge. Let me know if interested. Im in nnj
Always cheaper to build yourself or have it built , pre fabricated stands usually suck !! I know of a few guys who had stands made super strong and durable and barely dented the wallet
If you want I can draw up some plans for you as we'll as material needed for the build with a final cost for everything.i can't build it for ya but you can trust my structural ability to know it would be strong enough