Here's your first mistake Morkai...
Buying directly from GW.
You CAN get coloured spray cans from other manufacturers. Army Painter has a series of coloured sprays:
Other manufacturers make better paints for cheaper per pot (and that last longer!). I'd recommend Vallejo over anyone else personally.
If you're just painting one model, don't bother getting a spray gun, stick with the canned spray above. If you're genuinely getting back into the hobby, get an airbrush. From your post it'll be for ****'n'giggles, so stick to the spray.
Why bother with the paint station? Mine is in storage and I genuinely don't miss it.
Clippers for $25? You are getting everything from GW aren't you? I'd recommend other brands of clippers as both better and cheaper. Same goes for the files. I reckon You could get everything you're talking about for about $100 less than you've quoted. If you are genuinely interested in it then let me know and I can recommend stockists etc. Don't forget you can often buy paints etc at a discount online. Seriously GW are rip-off merchants if you get EVERYTHING from them, I should know I used to work there.