Mr Amazon delivery man dropped of the retrofit kit just prior to me going to hug the camper today (or was I waiting..I'll never tell LOL) so I was able to install it.
It really is a simple job; if it takes you longer than 1 minute you're doing it wrong (well if you are starting with an empty refer that is--you'd want to at least take everything out of the door).
Here are the instructions (pdf scan)
Refer before installation:
Hinge before installation:
The kit just slides right on: