I would not start with any coarser than 1500. In fact, even 1500 can take more buffing than I wanna do. And here's a product suggestion: skip the Meguiars #105 and use the Griot's Complete Compound available at Auto Zone. Here in AZ it seems the Meguiars dries out too fast while the Griots stays in the pad (has oils or something that doesn't let it dry out) and you can continue working the surface without adding more and more compound.

Here's my formula (red truck single stage enamel):
1) 1500 only for the worst orange peel and/or taking it down quickly
2) 2000 preferred, get it smooth as a baby's bottom
3) Medium or coarse foam pad application of Griot's
4) Meguiars #7 Show Car Glaze to restore color
5) Your choice of carnauba or whatever UV protectant you choose
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Matthew 6:33

1952 Chevy 1/2-ton 3100
Late '55 235/SM420/torque tube 3.55
Dalton Highway survivor (using original 216)
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