2003 Expedition Window Regulator

I have a 2003 Expedition, that my front drivers power window started
making some noise, and then stoped.
Took the door apart this weekend, and one of the cables on the
regulator was broken. I assume that
the Window Regulator included the new cables and connections to the
window.
How hard of a job is this to replace. In looking at the door this
weekend, it seams that it would be
a painfull job, with not much room to work. I have found the part on
line, and was wondering if I should buy it, and find someone to install

it. I am sure the dealer would be very expensive.
Maybe a bodyshop might be able to do it?