I need to scratch my head and have a long think about that one Mono.
Perhaps I'll change my mind after I have done, but in the meantime my first thoughts are that a stationary prop will not affect stall speed much as the wing will stall at the same AoA engine on or off. What it may do is effect the stall characteristics and for sure will cause you to loose momentum very quickly especially at a climb angle. If you were at 100' feet you were very lucky as you'd also just be climbing out of ground effect and along with the wind gradient not being in your favour, they'll combine to really put you in a dodgy spot! Assuming you managed to stuff the nose down quickly enough and didn't actually stall, then I agree, checks go out of the window ... just point it where the impact will be softest
Rather you than me .... Well done!
SS
Edit to say ... this post was in reply to one that has dissappeared?