Hi Martin
Great work. Just would like to share some "thinkings" about the ducting for the gearbox. I don't have the magazines here, but I remember, that the linden green spider was a feature in one of the last classic car magazines. There, you could see the ducting for the cooler.
I don't know the position of the cooler. Regarding your photos, I suppose, it is on the front of the hole, you have cut out for the duct (in driving direction).
If yes, there would be (for me) several risks: If you are in the gravel, or if you have mud, the part is like a shovel. Even if you protect with solid grill, this would be too risky for me. I also don't know about the "air-flow" in your engine bay. If (always in driving direction) the air will arrive on the backside of the cooler, you will produce a counterflow. So why dont you just put this beautiful duct inside, in front of the cooler, make the hole in the backplate and cut in the back plate some ventilation slots.
Further advantage of this layout (if you have enough space inside) would be some kind of "heat protection" for your gearbox-cooler) from engine/header-side.
Don't missunderstand this, I am also thinking about, to make a gearbox-cooler. And I would like to try it this way.
Regards Marcel => And of course all the best for 2009.
We are looking forward to see some more pictures from you !