The CST704.10 is a washdown bowl and the tank uses a standard ballcock and 2" flush valve.
It's pretty splashy.
It would be rare that I would ever sell one.
You would be better of, it the limit is $300, to install a standard 12" bowl like the Toto Drake.
The bowl will be out 2" more inches from the wall, but then so do all the other 14" toilets that don't require a Unifit adapter.