You will probably find that the front bar is a bit different. Since the VR4 uses a different engine bracket for the front motor mount, they are at least different as far as where the front roll stop mounts to it. Although, it would be interesting if they are the same as to where they mount to the frame. If so, then that item would be an option for those rebuilding a VR4 that can't come across the front engine bracket. Swap in a DSM front bar, or a Bullfab unit and use the stock AWD bracket from an AWD and the front is good!
I eagerly await this as my son also has a VR4, and his motor is wedged in pretty good at the tin=ming side bracket because the front engine bracket is from a DSM.