Bell-housing alignment help

I'll never turn down help! I will PM you.
I reset the indicator, tried a few ways, this seemed to be the best for getting it on center and as close to vertical as possible.

Numbers changed to:
12 - 0
3 - .038 (was 41)
6 - .094 (was 96)
9 - .057 (was 61)

This puts me at:
.0095 towards 3
.047 towards 12

OK, now to break out maths. Using the Pythagorean theorem I can guesstimate how much I am off due to the angle. Based on my rudimentary measurements (no I don't have calipers) the angle is adding about .98mm or .038 inches. Rounding for error in measuring I would cut that in half, so .019 inches.

That makes the measurements:
12 - 0
3 - .019
6 - .075
9 - .038

Putting me at:
.0095 towards 3
.0375 towards 12

All leading to my brain being mush and me sticking with my plan to place the .021 offset at 12:45.
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