Very easy. I should take no more than 20 min. In the sn95 there is alot of room under the dash to remove the stock. Much easier than when I did my fox. The fwa just slips over the cable and bolts to the firewall.
I was able to do it without too much hassle. The only awkward part was when I laid the seatback all the way down and laid upside down so my head was under the dash...change kept falling out of my pocket.
It was a PITA for me to break the little pawl part of the stock quadrant. Other than that, the hardest part for me was having the studs for the seat poking into my back (I took the seat out, which I suggest). It should be alright.