The best mill out there for around $1000 is the G0704 made by Weiss.
There is a few threads on this mill you might want to look at.
It is a fine mill but is a bit smaller than the RF-31 clone you have ,the MSC.
The G0704 is a 400lb machine and I think it is still a bit stiffer then the RF-31 but it may not be near the size or performance you seek. For more machine you will need to spend at least $1600 for the Weiss 30 or about 2k for a good RF-45 clone.
Why do you think the MSC is a POS?