It normally takes me about 45 minutes to remove and install the spindle assy. Add about 10 minutes to the CV shaft if I have a slidehammer. I don't have air tool nor electrical tool neither, but I do have a very large and long piece of pipe! I doubt I'd use the tool from AutoZone, it'll probably tear your CV joints apart. The last time I went there and asked for tools, they showed me a slidehammer with an adapter pulling the shaft from the hubnut!
