Re: mirrors
Legally see past? I'd like to see how that law reads

I agree with the other guys - stock mirrors should be fine when towing a little boat even behind an Escape. The Escape is roughly the size of the Sorrento we used to pull a 19ft with and I never noticed any need for mirror extensions on that one either.
347.40 Mirrors. (1) No person shall operate any motor
vehicle upon a highway unless such vehicle is equipped with a
mirror so located as to reflect to the operator a view of the roadway
for a distance of 200 feet to the rear of such vehicle. Mirror(s) shall
be of sufficient size to show vehicles approaching from the rear.
You will have to look it up for your state, but the idea is that you will be able to see approaching emergency vehicles.