Chrono,
Not sure of a budget here, but I am just gonna list products that I would recommend you get/use and list a brief description
Also, I am not sure of the prep steps/yr of car/level of decontamination on the car so keep in mind I am listing this as if you bought car and did nothing to it
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Iron X - chemical decontamination to remove iron out of paint
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Clay - mechanical decontamination (Iron-X wont remove everything) (Nanoskin is a nice alternative to clay, works fantastic. lasts longer, if you drop it you just wash it off and don't have to toss it away like clay)
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Clay Lubricant if you have none
(Do the plastic baggy test-- put hand in baggy, touch paint, if it feels rough at all, clay it)
Since you are getting the GG 6inch DA, get a
5 inch backing plate and 5.5 pads (lake county orange Orange, white, black for example)
Lake Country 5 1/2 x 7/8 inch Beveled Edge Foam Pads, buffing pads, Lake Country curved edge pads, polishing pads
I see you have a compound and polish, others may recommend certain products here. But, I'll leave it to the pros. I personally use Megs Ultimate compound, megs M105, megs M205, and other little samples I have.
then go ahead and find yourself a nice wax/sealant or even coating you'd like to use as your last step
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Waffle Weave Microfiber towel for drying
best of luck!