I'm building a tip up 7 and installed them. I believe they are smaller (maybe 50mm) fans. That way, I could get clearance from the panel frame. Notice they are forward with a significant space from the tubular part of the frame. Check this before cutting and drilling, as you may have an interference issue with the canopy closing.
I later covered with material and grills. Was able to Sika Flex the canopy and it came out about right. Just check things before you do any of this and you'll be fine.