I have M3's and a VP100 up-front and the soundstage is pretty "seamless" to me. BTW, I power them with a H/K AVR 520. I've read that if you go with M22's as mains you should get the VP150 to match.
IMO, if you went with M3's all around and a VP100, you'd have a very nice "budget" speaker set-up.

Big L