In January '06 I sent an email to a guy from the Zaklee corp. I asked if he could make a clear cam cover for the 4AG. He sent me an email today, and I'm going to send him the link to this site to post as a Vendor(if that's okay with the admin gods). WooooT! SHECK IT OUT:
The one in the photo isn't polished yet but, I'm sure it'll look pretty cool after! Here is the club4ag post: http://forums.club4ag.com/zerothread?id=39431
I like this product a lot. It provides a cool view of the engine while still offering protection from debris. I bet you could tap a few holes and throw in some led lights for a cool night time show.