just remember there is different hydrometers. ie beer, wine, spirits. you want a wine one or any thats got the biggest range on the scale. eg mine goes from 0.80-1.150.
62f is going to go a little slow. i have one batch of mead with EC1118 at around that temp and its crawling. not a bad thing taste wise but it will take a few weeks to brew.
i don't know about fruit. i haven't done much with fruit. seeing as its already in i would leave it till ferment is finished. i figure you might as well get max taste out of it.