Hi MM,
Yes good points I am thinking about, these have 4 bolts that hold the blade carrier on, I'm thinking of getting a 20mm thick block to space the carrier down and I can recess the bolt heads inside the plate to protect the heads I am working on an idea to space the blades down to allow for the dome on the blades to sit. As for the plate I'm thinking of using 4mm plate to give it extra strength because it won't have the dish and turned up outer edge