Well what 68 RT said is what I would do I know it doesn't help much as he gave you two ways to go
It all depends on how bad the Orange peel is for me..... 3 coats ???? Light or heavy coats? hard call without being the one who sprayed it. I would error on safe side of blocking with a heavy cut and then respraying a couple more coats then doing a cut and buff.
Single stage can be a bear as I found out on that Ford I did.
I did a cut and buff on Black SS and sanded through to a previous coat that I had done previously in one spot no matter how much I buffed or sanded the Black was off just a tad in the one spot and you could see it.
This was from the same batch of paint from the same supplier same person mixing at the store and I used the same pressures and setting's on my gun to apply it, all I could figure is the person mixing it on the rack messed up or Temp & Humidity were different when I had sprayed the different coats or I had messed up mixing it myself same result either way I had to repaint the quarter.