A Surface Pro should be able to run RB just fine. Especially with 8 GB RAM.
I've used these for much more demanding tasks, and they are good machines.

In this setting an additional internal drive is not really an option, but you may see performance increase with an external USB ..
not sure I'd worry about it though if I were in your shoes; if it ain't broke don't fix it.


Make your sound your own!
.. I do not work here, but the benefits are still awesome