similiar water here, my pH is 8.2 out of the tap and doesn't budge even during my fishless cycle I never had a pH crash. when it came to deciding on fish I chose o use it to my advantage and chose fish that suited the water rather than complicate things with RO water and tons of testing. Settled on Tanganyikan cichlids, fantastic fish, and in a way I'm really pleased about having really hard water as it opens up the door to some really unusual fish with interesting body shapes, subtle beautiful colours and intriguing behaviour.
Didn't make sense to me to "fight" the tapwater, wanted fishkeeping to be a relaxing hobby rather than a chore, I don't have to do anything to the water at water change time just make sure its about the right temperature. My uncle lost hundreds of pounds worth of discus after a water change went wrong, don't want to risk that kind of thing happening!