The 607 has pre-outs for all audio channels, so you should be able to add external amplification to both front and rear channels if you want, effectively using the receiver as pre-amp only (or as power amp for surround channels only).
If you still have the M282s, then start from connecting those in the chain, and see how you get along. The VS150 and VS120 can easily take more than the 100 wpc that the M282s are capable of. If you no longer have the M282s, I would consider trying the Fosi V3 - they are inexpensive, very well reviewed and incredibly powerful for their size.