When you have to have round front your limited and then 14" your getting worse.
The Drake and Promenade are not 14" and the Dartmouth is only available in Elongated rim.
If you can fit an elongated bowl than your options are more open.
The only thing i can think off is to use a C733F Dalton Bowl which is round front and Universal Height, but no Sanagloss or G-max.
Then use the ST701 Reliance 14" tank.