Hi mate.
The products cost about £30, plus some applicator pads, and buffing towels etc.
My process was quite simple... one panel at a time (I did the front and rear clams in 2 halves each). Spend about 30-40mins polishing the panel using the Meguiars Speed Glaze. Use a strobe light to show up the blemishes, scratches and swirls so you know where to add more elbow grease. May need to buff off the panel once or twice to get it back to basics so you can look for more defects. Once satisfied. buff it off with a towel.
Then I applied the first part of the Carlack which is a cleaner, chemical polish and a weak sealant (3 months or so). Wipe it on with a applicator pad. Leave 1 minute. Then buff off with a towel.
Then apply the 100% acrylic sealant (2nd part of the Carlack). Exact same process as above. This sealant lasts 12 months sometimes longer. It is designed for boats and planes as well as cars!