According to the Honda site, seat height on the standard model is 31.2" and the Deluxe is 31.3", so I'd say not much difference in height. Can't comment on width. The retro style seat on the DLX looks wider towards the front, but that could just be an optical illusion.
I am in Peru for work, but if you remind me in a week and a half by pm I'll measure and photo graph for you. I will have to get the 2013 seat out of storage as I switch a Corbin seat between both bikes.