Tricky one! :))
Easy to blunder, for 54.
EDIT: Manti's 52 path is crazy! :))
Excellent! The 52 elevates this level a lot, nice stuff Same as alazeh. Fun level Another great level.
I first had two 80s, never got 78, jumped straight to meow's 76. :)) After 4 days I've finally got it, tricky. 
Insights