Looking at the one-piece toilets, which by the way are easier to clean if you have boys, and should be elongated, you could look at the:
Toto Ultramax elongated, $399.99
Toto Soiree elongated, $595, Even easier cleaning
Toto Ultimate, round, $359.99
There are a few one-piece at the home centers that I remove every so often. Sometimes I have a customer that wants a little more performance, so they change one, and then they change them all.
The Cadet 3 would work okay too if you have time to open the box and check it before you bring it home.
I buy toilets 20-40 at a time, and it's not worth it to me to buy products that way.
It's hard for me to sell an open box, even if it means that I opened it to inspect it.
So to sell something like the Cadet, if would be leave the box unopened, sell it. Let the customer open the box, and then make a second trip if it's not good enough to sell or install.
I don't think so.
That's why they pay them the big bucks at the home centers to take back defects.
I like doing things, just once.