I really don't think that a Shop deck would be very good at all without Mishra's Workshop itself. I'd play
Angry Hermit , because it requires no real P9 power nine, but is a very fast deck. I'd imagine that versus some of the provided decks, you could do very well.
Just look through the link if you are interested in the idea. Un-powering lists isn't difficult at all, because you just cut the two Moxen for two more Simian Spirit Guides, and Lotus for whatever you want, really (Probably Overgrown Tomb). This however only really works if Future Sight is legal, which it should be in a couple weeks.