I typically follow the #7 treatment with Meguiars 205 and a foam pad at around 1000 rpm on the orbital buffwr and topping with a carnauba wax. Here's a quick before and after of an original paint '71 C10 I used this technique with. If your paint has gloss and oils from your previous coats of #7, you might be be able to just machine polish and wax.
Jeff
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