4ft metal stand recommendations

[Aeon]

I'm going to have a 4ft stand, filled to the brim + 36litres of Aquasoil and 8litres of Powersand and Rocks.

I've seen discussions in some threads about 4ft metal stands under $100. At the same time I was quoted by a tank maker $100 for 2in x 1.5in metal and $180 for 1.5in x 1.5in.

Is the 2inch x 1inch stand sufficient for a full tank of water, rocks, substrate? I understand the square one could be stronger but I need to be sure I'm not spending unnecessarily. Not sure if I'm getting a good deal and whether the more rectangular metal would be sufficient to hold the weight of the tank+contents. Or should I buy from an LFS?

Appreciate the help!