I followed your advice to get the hub off, it was rusted on pretty solid. Here's a photo of the hub after removal, along with the deep 14mm socket used to take the bolts off, and the improvised chisel I used to break the hub away from the hub carrier. It's an old table knife with the blade cut short and then filed to a sharp edge. I had to undo the shock absorber lower fixing to move it aside to get my socket wrench in position, but other than the hub being stuck, it went a lot easier than I thought it might.