I would use the receiver as pre/pro and use at least it's rear channel amps for surround. You could also use it's center channel amp and only buy a two channel amp of your choice if money becomes an issue. Your budget should be more than enough for a good used two channel pre-amp along with a good used two or three channel amp for the front speakers. If you like the Rogue 99 then that should work fine and give you some tube sound for two channel music.
Dave
Dave