For starters lean angles would have to be less which could cause can bashing on the road (yes i've heard of titianium plates for it) but from experience lifting the rear wheel in a corner is not a good option

Then of course what about being able to see over the handlebars?

As a suggestion how about a Buell Lightning, Moto Guzzi Breva, Gixxer 6 (seen a shorty on one of these, she's 5'2") in fact I'd have thought any of the modern 600 sports would fit you.
BTW I liked this Buell http://www.ebay.co.uk/itm/2003-BUELL-XB ... 2351513377