That !! Hands down !! Would be the best bet ! Ask if they mind you coming to visit the horses ? Or if it's ok for you to just come hang out and watch if they are giving lessons ? Tell them so you might be able to watch and possibly think of more questions ??
And believe me... You will ! Ha ha ha ! And they know it ! They also would be the ones to be able to tell you exactly !! What there horses would need for care and what they feel you would to care for that horse ! Sometimes they will give you the bridle the use for that horse

not all bits are the same
Not sure if we are allowed to give out personal emails ? Hear or not ? If so I would be happy to share mine with ya