There is one company that does make something in the uk. Can't remember the name, but you loose clearance. Better off to cut them off and make them removable. Do a search fopr exhaust mod. I did a right up on one mod that works quite well.
Rasta4x4 makes the rear diff/skid to protect the exhaust, but the price you pay, might as well bob the exhaust like Scott did. Hey Scott, why don't you add that exhaust mod to LR3Tips?
Neil, those look real nice. I particularly like the detail at the front and rear of the plates. Very nice job, although I must admit I'm not wild about the heads on those bolts. They would not last long around here in rocky SoCal... Have you thought of recessed hex bolts?
Also...and this is important, the only fabricator of gas tank skids (HighCountry4x4) has now gone out of business again. Do you plan on offering a gas tank skid? As someone who has purchased THREE gas tanks due to "trail modification", I certainly see the value in added protection down under....