And the runners and guides, as well as the chuck head play.
7 feet is sweet but I've never needed that long. I wonder if its for driveshafts?
If by runners and guides you mean the gibbs and ways and they can be adjusted as long as there is not too much wear in one spot on the ways. The play in the spindle main bearings can also be adjusted out. The bed is seven feet but I think the max you can turn is 56" between centers. Probably more than I'll ever need but it's good to have!