No, not really. This is going to be tricky...I would build it the same way I would do a regular stand, and then add on the front. Im sure there are plans on the interent for them.
id say take a 4x8 piece of 3/4" or 1" ply,set the tank on it, and trace around the tanks trim about an inch away from it, then just let the legs go flush with the curve.
on the first pic u only see 3 studs in the front but i ended up putting two more to be able to bend the dry wall into a radius and then i coated the hole thing with five min hot mud it drys super fast and i am able to to work the mud into any shape once its dry