Don, do you have publisher license?
If so then you should split them like this
Server1 32G: QDS, QMS, DSC
Server2 64G: QVS, QVWS, [DSC]
That way reload tasks will not affect end user performance, QDS and QVS will not compete over resources.
Make sure both servers are relatively close network hops wise.
More servers, more complexity, more licenses, many problems with two enviroments.
So, Qlikview isn´t approved to run in Windows 8 enviroment.
If you have many tasks anf publisher license, I believe that a small server will work. If you have only one Qlikview Server License withou Publisher, my suggestion is move all service to this new server.