hey! I just checked mine out, it would be a relatively easy job to make a nice aluminum insulator! I noticed the original plate is only about 8 x 9 inches or so, and it fits into an indentation in the hood pad. BUT, the indentation is substantially larger than the plate! I could make one large enough to cover the entire indentation! What I would worry about, is the mounting. The original is held on with 2 small sheet metal screws, and I don't know if they would hold up a very much larger plate! If I make the plate out of .030" thick anodized aluminum, it shouldn't really weigh much more than the original, so it might be okay! Also, it appears there's plenty of room to drill an extra hole or two for extra screws! I need to experiment!
Also, on the engraving, I would suggest either the "T-Type" lettering or the GN logo, simply because the insulator already has a jumbo power 6 on it!
AND--can anyone tell me if the IC cars have a similar plate up front?