Here is a nice intro to choosing a kayak paddle.
https://www.rei.com/learn/expert-adv...ak-paddle.html

I started out with a paddle from Dicks Sporting Goods my first year and it work completely fine. Now I have been using the Werner Skagit paddle for about five years. They cost $135. Carbon shaft.

Lastly, roof racks. Roof Racks are vehicle specific to what is compatible with your vehicle. Yakima,Thule,Etc all have really easy fit guides. Put make model of vehicle - give all option that fit that vehicle. I have had put down seats,open windows, bungee trunk to get my kayak to the water. Where there is aWill there is aWay.