Thanks, guys! crockey, I hope you're not missing your MBK, as that was an impressive piece!
rm88: The Space-Dweller gets all the attention! In all honesty, between the domed crystal, the low-beat movement, and that spectacular dial, it's my favorite, too. But the 16203 Explorer has its positives, and a different personality. When you see the sharp edge of that GS crystal in person, it really (as Ubi says) "looks the business."
Looking back at my first two projects, I think you can do quite a lot using a rep Datejust case. If I were to go over them again, I would focus on the crystals and sand them down so they didn't protrude so much. Get the general profile right, and you have a nice 1016 rep for not that much money (relatively speaking!).