The supernatural large pot should see you through the year, so its not that bad.
Check out one of the detailers web pages for the buckets mat, you should be using two buckets too.
I found out all this stuff after struggling with a black car for a while. I am now plating catch up.
There is a cracking post in the detailing section ( I think) with a full run down of the processes, well worth a good read.