Yeah that's a pretty broad estimate. Most search for the deals and some buy brand new, just depends on your budget. Catching someone doing a full tank/out of hobby shutdown usually nets the best deals on a whole package.
If you want new, email Oceans By Design for a custom quote, pricing I recieved from them was very reasonable (for the tank, I would DIY the stand if you can).
As far as the kole tang, totally fine in my opinion. He's got a 4' long tank to roam in for now. We've all seen WAY WAY WAY worse lol!