Hi Wayne,
Just some food for thought. Linear rails aren't straight or true right out of the box. The rails should be clamped to a straightedge to hold them true while mounting. The second rail can be trammed in with a dial indicator, mounted to a beam attached to the trucks on the first rail.
A 10 foot axis is going to be a challenge. Finding a 10 foot parallel bar to use as a straightedge is a challenge in itself.
I'm sure that it can be done. Just make sure that you know what to expect before taking your machine apart.
Diplomacy is the art of saying "Nice doggie" until you can find a rock. - Will Rogers