The "Can You Brew It" podcast has a 'clone' recipe that they say came out really close (links available on request). IIRC, the Caribou Slobber recipe did follow that recipe very closely at one time (2015 - 2017). That being said, there are many ways to make a solid brown ale.
My 1st kit was Caribou Slobber. So every year, at my "1st brew" anniversary, I brew a "Moose Drool" clone. I've found many ways to make a solid brown ale. Cloning Moose Drool 'perfectly' is likely an exercise in water adjustments.