Not sure of any issue with installing a second copy of Daz/Reality .... that's something Paolo could answer best, obviously.  However ... there really isn't a need to do so necessarily.

 

You could always set the scene up on one machine, and in the Reality output tab, tick the "Collect Textures" box ... choose Highest Quality. Then, start the render and let Lux create it's necessary files .. resources, .lxs and .flm ... then stop it and start it up again on the second machine.

 

That's actually what I do, in sorts. All my scenes are created and started on a primary machine with Lux set to save it's files on a network drive. Then, I start the render process from a second "primary" machine that heads up another 4 slaves for network rendering.