You can order this Onkyo from Amazon for $Can429 delivered. The M2 and VP100 are really easy to power so this receiver will do the job. It will also power the sub.
Onkyo TX-SR393 5.2 Channel A/V Receiver
https://www.amazon.ca/dp/B07T3PRK4L/ref=cm_sw_r_apan_glt_i_B7WJ0X7CZ3ETGG9ZN30EThe 125v4 is all you need for that size room.
With the money you save by not buying a bigger sub and more expensive receiver, consider picking up another pair of M2OW for surrounds.
Check these centers out in Deals. And remember you can save some bucks by clicking on "I can wait" if you decide to not go with deals.
https://www.axiomaudio.com/bst-99https://www.axiomaudio.com/bst-32You could also get these surrounds instead of M2:
https://www.axiomaudio.com/bst-47