Those satellites seem to be a bit small for use in a 4200 cubic foot space. You might want to consider towers for the fronts instead.
If you opt to go that route a few potential package options are:
If you want to go separates then matching the Premier Acoustic PA-6F
would be a nice system. You could also try using the EMP Tek E5Ti
That leaves about $700 for a sub, which could buy you something like the Epik Legend
, HSU VTF-2 Mk4
or Outlaw Audio LFM-1 EX