The print is about half way along, the overhangs on the ports all formed really well. I was the most concerned about the bottom of the exhaust duct and it looks great.
Josh I think I answered your question up there in a couple of very lengthy posts. Seeing your project got my mind thinking about this problem years ago, and since I've been doing casting and learning stuff, I've spent a lot of time 'bench racing' this pour in my head. It's definitely unconventional and I have no idea if it will work or not.
The sprue runs up the center, this way the molten metal will fill everything evenly, it will keep the center of the mold hot and it will prevent a big thick section of plaster which in my experience likes to stress crack when the hot metal hits it. The print (yellow) is upside down that big bump on the bottom (will be machined down into the skirt) is the 'well' that will fill the mold from the bottom up so hopefully my fins all fill. 3 small runners connect the center sprue to the well avoiding the ports so I don't get wash dislodging plaster in the ports. (edited)