Pm sentCool - let us know how it goes. The WB AIO are tough to do since they have that single inlet Y fitting. If you find the stock plumbing behind the back wall too restrictive, you may be able to do a little DIY and plumb that mightjet in with 1/2in PVC or flexible pipe up to the stock inelt, and get the most output you can out of it.
Either way, I am be very interested to see how this goes for you - please keep us posts.