I remember you telling me about something similar to this idea on eBay. I think it would pretty cool. Now if it matches the rest of the house...that's a different story. But definitely a very cool display piece no matter what.
If it were completely done ready to go, $1000 -$1500. This one in its current state, $400. There is a lot of work left to turn it into a nice table. You would still need an intake plenum, plug wires, etc.. to really make it look awesome.