There is little need for a center with bass response below 70-80Hz anyways.
Have you tried a full range speaker as a center? There is just as much content if not more mixed in the center channel. The added impact and realistic male vocals is great.
You wouldn't just need to loose some width on the VP160 for many people to still be able to fit it inside a cabinet/stand it is also quite tall at ~11", not to mention if you loose the width then either the depth or height would need to be increased to maintain the same internal volume.
