Libstripper has a good start.
The way to use a roof rack is to avoid trying to lift the whole kayak at one time.
The T-rack is above the spare. But one end of the Kayak on the T-rack and rotate the Kayak by holding up the other end and walking it around to the front.
This allows you to use leverage and only pick up half the weight of the Kayak at a time.
I use a modified system that I made to put a Scanoe on my Truck.
Should work for your kayak.
There are also side loader systems.
Here is a link:
http://www.roofracksgalore.com.au/kayak%20loaders.htm
That is an Australian site, but I am sure there are plenty in the U.S.
Good for you. I, too, have a Scanoe and get it up onto my Navigator the way you describe.
Good for you. I, too, have a Scanoe and get it up onto my Navigator the way you describe.
Just be sure to walk the free end the other way around above the equator...