If I get a copy chrome kit will I need copper ? Looking at the 4.5 gallon size,

but not sure yet. Please advise me of any consumables I will need to get started so I can get them now. I want to do steel & aluminum too. What power supply will I need ? Someone Help, so I can order Tuesday. I would like to get Started soon,and still have to build a work station. I know it's going to take a good long while to get any good at this.
Thanks,Dave
If anybody wants send me a pic or two of your work station, (floppyspoppy1@bellsouth.net) if you want give me some advise on how to build it.