To take the top roof off you need a set of metric wrenches/sockets. There are 5 bolts total. One in the front middle of the roof , 2 on the sides of the roof, and the 2 rear light brackets with the one bolt holding it on. Once the bolts are removed you need to people to tip up the front. There is a rod that holds up the roof up like on a car.
To gain access to the blower you need to remove the plastic cover from the AC evaporator housing. Motors go bas=d as we have had to replace the one in our 8700 2 times so far but there is 11,400 hours on it.
Also check the fuse block for bad connections on the back of it.