My bro-in-law installed the powermadd 2" riser on his without the need to extend any cables but you will need bolts that are about 3/4" longer. I will be installing the same 2" riser on my 2010 Assault once I pick up the longer bolts. Yah...my local dealership was no help what-so-ever either.
Stock hex bolts are 1/4" - 20 x 2-1/2"...so the same bolt 4-1/2" long is what you will need (and what I just ordered...in a grade 5 bolt). I will confirm once I get it installed. Not from Saskatoon...live in the "Border City".