There are quite a few members on this forum who have or are towing trailers (13'-15') with the older subarus - by older I mean previous to the 2.5 liter with the 2400-2700lb capacity. When I had my hitch installed last year he only option for our 2005 Forester was a Class II hitch which is what I recommend you get. I also had it wired for a brake controller / 7 pin system and it was pretty expensive - just under a $1000 CDN at a dedicated hitch installer for the works. To have trailer brakes
installed on your Boler
is going to be another $600 - $800 CDN from what I have read onthis forum. They will need to replace your Axle
with one that has the proper brake flange and brakes
I have towed our 13' Trillium
(a little heavier then a Boler) without brakes
and it's doable. However, we have a few mountains here in BC and I don't feel comfortable running without them when I have kids in the car.
Your trailer is more likely 1200lbs +. The 900lb base weight
they give these trailers is without fridge/stove/furnace etc.
I have never used Canadian Tire for doing mechanical work. Anyone else?