Speaking of all of that made me want to do some more researching about it. Apparently the little Harbor Freight mixer works well according to this guy. I know that my local Home Depot has a larger mixer for rent though I don't know which way would be more advantageous cost wise.
View: https://www.youtube.com/watch?v=e5_onUqIAWk
View: https://www.youtube.com/watch?v=e5_onUqIAWk