I bought a couple of the JB-011 1 litre jugs from coffee parts recently though not with the intention of latte art, but volume. I dont think larger jugs are intended for latte art, but these are comfortable and art is possible. They fall well within your budget.
The motta jugs are better quality, heavier, thicker, higher grade stainless, and have a deeper spout which would help with the art. These features are reflected in the price - a bit more than your budget.