I have been told that the Von Schweikert speakers can be placed up to the back wall because of there design.
That's not correct according to what I have read, and my own experience with VR4. I believe you will experience some significant bass boom and midbass hump placing VR4 near the rear wall, but only trying it and listening will tell. They should sound very good with the Wolcott/Wadia combo.
The VR1 monitors can be placed near a rear wall. Doing so helps their bass response.