Rough guess is that its probably 400lbs. Take apart what you can before moving it. The plates I mentioned earlier should come right out, they aren't attached. Be sure to pay attention to how you take them out. Also make sure to wear gloves when you're handling any of the internal parts and wash your hands thoroughly afterwards if you don't.
There's other parts you should be able to take off too to lighten the load. Not sure about the cast iron model but on the others you could take the panels on the outside off like the lid, they are just ornamental. Take the door off is you can. If the bolts attaching anyhthing don't loosen easily forget it though, you'll probably end up snapping them.
I'd have at least 3 people to move it if you have to move it as dead weight, you might be able to get away 2 . Makes sure you don't snap the legs off.
I don't think you'll be disappointed with it, let us know how it works out.