So I've finally had a chance to actually listen to the suggestions so far and they are very cool. I reckon we should be able to muddle through a version of Ain't no Rest for the Wicked without mucking too much with funny tunings (unless someone is up for a little slide guitar) I'll take a proper look at tabs/chords when I have some time.
Here are another couple of ideas that have been suggested in the past for your consideration...
Slow Cheetah - RHCP
Eyes of the Panther - Steel Panther (really cool but I think we should only put it in if someone already knows the guitar riffs)
@guidothepimmp do you have anything else you'd like to add? You seem to have a good few songs under your fingers.
Nick the drummer has given me a tentative yes. Once we've got a few more confirmations here I'll chase him to firm it up.
Oh, and I see that I messed up tagging @klaasvakie in the opening post... hopefully this fixes it. ?