would 112 kt be an appropriate take-off speed for the Jet Provost?
Have to look at the books but that sounds way way way too high, it's going back a long time since I was on the machine, ready to be corrected, but I don't think on the JP there was a strict "rotate to get airborne" speed or specific "take off" speed in the way that there is on some civvie types, you just made sure the the nose came up to/selected a takeoff attitude at a sensible speed in the take-off roll and at some point hopefully soon after that the aircraft would simply fly off when it was good and ready.
If the Hunter is similar (and TBH don't know) then I think nitpicking the initial takeoff speed on the day is a bit moot, though I am aware it is commented on in the report.
I'll see if I've still got any JP notes lurking.......