I always try to tell people to go with the standard height TOTO. The higher height was their handicap toilets. Measure your existing wall to the center of the toilet and buy the Toto according to that. Its rough dimension so if you are 1/2 off, its ok. THey also make a different length set back jsut in case if you screw up.
Wife's wish? Yeah right.
All the years I have done this, I have only installed one of those self cleaning toilet twice. First time was for a Chinese woman with her Japanese husband who let her do all the talking. The second was for a young Japanese couple from overseas.
Now you must tell me the secrete. IS toilet paper involved in this process

. Of course I was temped to try the toilet we installed but that's wouldn't be fair to her for my workmen to inaugurate her brand new TOTO instead of the owners. So, do you wipe before the jet stream or after? You still gotta to wipe your ass from all that splashing. With what, toilet paper? It falls apart the minute it touches water. I am intruged.