I'm late jumping in on this one but if you have no repair to make I would not buy anything since the paint will go bad. You should talk directly with the manufacturer of your covering system and buy from them or their designated distributor.
Superflite was extremely helpful. It's confusing since they are switching from System 6 to system 7. They sold me a yard of fabric, quart of glue, primer and paint as well as hardeners.
I did an 8" round patch. I brushed everything since it was so small. Turned out great. Very easy.