Jason,
This is my opinion only.
I would buy a belt grinder of some sort. The closer to 2 X 72, the better. I have made a few blades on a 1 X 30, but it uses more belts, of course, to get a knife made. Some of the Craftsman wide belt sanders work OK too.
I know guys who have a Grizzley Knifemaker's Grinder and do OK.
After using a KMG I'm spoiled.
Lin