Auto body repair & detailing: Air Compressor/Orbital Sanders, tractor supply company, air compressors

Question
Hi,
I've got a project car that needs some minor body work, As well as primer work.

I would like to do this myself in my garage, However i would like to achieve the best results that i can with the tools i can afford.
I'm looking into purchasing an Air Compressor and some air tools to get some good results.

However, Im having a hard time figuring out what power specs i need in a compressor...
I have my eye on a couple compressors in the 10-20gal 120PSI range, That put out 5.6scfm@90PSI.
And this seems to be the strongest i can find anywhere near the price and scfm output.

But then i look into Orbital sanders for body work, they  spec @ 10+SCFM?!
Am i missing something here?
Am i looking at the wrong sanders... Or am i just reading something wrong?

All of the compressor that run 10+ SCFM cost $800+, Im looking to stay under $350.
I'm currently able to get a 10gal 5.6scfm@90 for $150 right now... Which has me really tempted, But will it work fine with all around use? (Including Orbital And paint sprayers?)

I've never used any heavy duty air compressors before, Im kind of confused right now... Any advice, Info, Guidance Appreciated.
Thanks!!!

Answer
Hey Jeremey! You are going to need a decent size compressor. What you are currently looking at is WAY too small. If you go to Tractor Supply Company or a similar store, you can find a 60 gallon compressor that will JUST be big enough to do what you want. You might even look at Lowes, Menards, or even those Homier and Cummins truck load tool sales. I just looked at Lowe's web site, and they have a 3.5 horse 60 gallon single stage compressor for 399. Expect to spend at least 450 bucks out the door, no matter where you go. I know, it's a hundred bucks over your budget, but believe me, there is nothing more irritating than waiting for a too small compressor to catch up- especially when you are already doing a time consuming job like sanding with an orbital sander. Get the bigger compressor, and you will be able to run tools like an air file, sheet metal cut off wheels, air saws, and just about any body repair tool. You can even do an overall paint job, but it's all the single stage compressor can do to keep up, even at 60 gallons. The future will surely bring you bigger projects, and buying the right size compressor now will take you far into the future. I bought my 60 gallon single stage home compressor 16 years ago, and I never regret spending the extra coin one day of my life. Heck, I don't know what I did with the hundred bucks I would have saved buying a smaller compressor- or how much more money i would have spent buying one that would keep up with heavy air tools. Pay me now, or pay me later, you know? I do wish I had bought the 80 gallon 2 stage, it will keep up with any air tool, no matter what- but the 60 gallon single stage has done the job. Sometimes I have to wait on it, but not too often. If you do a lot of sand blasting, you will wait on it a lot. I firmly believe that the 60 gallon single stage is perfect for you. Bill