Way kewl...old skool!!!...Gotta love it. There's not much I can't do with a rotary and a DA.
Now for Carpro Essence I might suggest using 5" Meguiars microfiber with a 5" BP on the PC.
I also like the Carpo orange pads and the soft Gloss pads. Again, for LSP it's personal choice.
For a deep decon I might suggest clay after you use the IronX...
CarPro ImmoLube with
OBSSSSD Ultra Fine Clay before Essence.
Essence with clean up any OBSSSSD Ultra Fine Clay micro marring.
so basically...
Pre-wash / Wash
Decon chemical and mechanical
Polish with Essence via DA.
Apply your LSP of choice.