I too installed my own. Adam above has a pretty good handle on it.
I did a couple of things different on my install.
My location was pretty far from the batwing, and I wanted to keep it anyway.
So it was to go towards the rear. I did not want any new holes in the roof, and was able to run the wires along the rear ladder, all the way to the bottom, and come up thru the floor. No possible way for it to be a source of a leak.
I also glued a nice piece of stainless steel to the roof for the roller to ride on.
I used dicor for thism and for all the sealing required.
Then I desided that I liked the self stowing option that can be installed, so if you forget to stow it, it automatically stows itself.
This required a whole house inverter, to provide AC power to the dish at all times... That project is a whole nother thread, but it was well worth it.
I used the brake lights as the trigger to start stowing. It works great, except when I stay hitched up for the night, and forget to junplug the umbilical from the TV.. Locking the truck with the remote flashes terh brake lights and stows the dish..... Believe it or not, it took me awhile to figure this out. Not a big deal once you know what to expect..
And yes that part of the install has prevented an expensive mistake!
