In desperate need of a tank upgrade!!

[BanZI29]

So my 25 Gal AIO is officially too small! I am going to upgrade but having a craptastic time finding what I want/need. I am looking for 40-50 gal tank rimless, no taller than 17" tall, 36" wide and 24" deep. It does have to ne an AIO as my stand can not hd a sump. Does anyone have any idea where I can get something like this.or close to it, besides innovative marine? My budget is about $500 also. That is finite, sadly.
Thankyou for any help And advise you can give.

 

[BanZI29]

A current pic of my tank now.

 

[Schraufabagel]

Waterbox used to sell their AIOs without stands, but now they are required. The closest thing budget wise that isn't Innovative Marine would be a Fiji Cube AIO

Fiji Cube 38 Gallon Peninsula Rimless AIO Glass Nano Tank

Unique design and craftsmanship are in the details of Fiji Cube AIO Nano Tank Series. All Fiji Cube tanks are built with ultra-clear low iron glass. The Fiji Cube AIO Nano Tank comes with unique features that the hobbyists love about aquarium keeping. Fiji Cube uses next level up glass thickness...

www.fijicube.com