Brave!
If anyone is brave enough to de-lock their Bravo/a then they have my huge respect! Given the number of emails I receive from people who cant get into their car without setting the alarm off and having experienced the unreliability of the Fiat CODE system and keys you are a lot braver than me!
If you do fit different handles be very carefull when you do the fit as the handle areas will take a lot of abuse over time, especially in winter if your door freezes shut. Any weakness in any filler, weld etc will cause problems and make it look shite.
You also need to esnure that the new handle gives enough leverage over the right distance and at the right angle so as to open it efficiently otherwise the same thing will happen as in the above paragraph.