I haven't tried the Bravo stirrup pump, but I use the Quicksilver version
and it does a good job.
It's double action, but you can switch to single action to get the floor up to pressure, and it has a pressure gauge.
Having said that, your boat should really have come with a pressure gauge, but it's quite small so may easily have gone missing. They may be available as a spare, so it's probably worth giving your friendly Avon/Zodiac/Bombard dealer a ring.
Actually, I had a look and Rib Shop sell a gauge
that looks very similar and should do the job for you.