Don't see what the problem is, provided you're persistent.
I'm 6' 5", and weigh about 95 kg. I'm also a serving RAF helicopter pilot (shucks, there aren't many of us about, so I guess there's goes my anonymity!).
I was turned down by the RAAF initially for being too tall, but some years later joined the RAF. I didn't sit up straight when they measured me, that's all
. In fact, they still think I'm several inches shorter than I am. You may simply find that you need to adapt your seating posture to fit the cockpit of the aircraft of your choice. Be prepared for the odd back pain/neck ache: it's fairly common in helicopter pilots, and your height won't make the situation any better.
The moral of the story is that if you accept what you're told at first, then things will never come to pass. If you're an annoyingly persistent git, who never accepts 2nd best, then you're in with a chance.
Hope it works out for you. Best wishes,
SBW