With most stand alone bidets, they connect with a lav p-trap. The drain is like a lav 1-1/4" tailpiece.
The faucet, is like a lav faucet as far as connections.
You would have to double check the specs, to see if the p-trap can come from the wall, or if it needs to be below the floor.
The water supplies normally come from the wall with standard shutoffs.