A small update: I'm working on the stance.
I'm happy with the camber on the rear. It might seem excessive, but it's supposed to be that way

The front has been dropped by moving the entire front sub-frame upwards into the chassis by about 1 mm. Still needs to drop another mm or so. The rest of the drop will be completed when my order for the 13B will arrive. At the moment I have no idea how the engine will fit on the front subframe.
Until then I'll do the interior of the trunk and the doors.
@corvettekid: Monster Miata FTW

Maybe I'll build another one with a V8, I love Miatas!