Just got home from work and will post pictures of the tools you will need. The lacing tool is designed to insert the lace by opening the the gap enough to lock it in place. The Hook tool is used to lock the self locking gasket. White polystick(Windshield Bone) is used to manipulate the glass into the gasket. Cutters are what you had found on the Sears site.
The corner gap everyone asks about is dictated by how you install the gasket to the body. Gaps and corners not seating all depend on the fit of the glass to the opening. The gasket is 1/4" thick between the where the glass sits and where the pinchweld sits. This is called an Over/Under gasket. There is also offset available that puts the glass outside or inside the cab depending on your needs.
If the glass is cut 3/16" inside the pinchweld all the way around, this gasket will look perfect. Once the glass is in and the corners are a little off you can pull,or push linear to the glass and correct. A warm shop will also make the install much easier. When I did autoglass for a living it wasn't uncommon to run my truck with the heater on full blast so that the gasket would be very pliable and less rigid. Hope this helps and all questions are welcome.
