Don't know the Corfield, would imagine the main criteria for comparison would be price (prices of focusing mounts etc. can be shattering). As you have Mamiya RZ67, I imagine you would like to use the film magazines on the shift camera, too.
In general, shift cameras are made for architectural work with wide-angle lenses - their one virtue is less weight and bulk than a view camera, their biggest disadvantage is the very high cost (very few available second-hand). Shift movements are of very little use in landscape work - as has been remarked on recent threads:
(there was a url link here which no longer exists)
tilt movements (front and back) are the #1 priority, with swing back a distant second.