HF 21 gal. air compressor?

I have had over the years the 80 gal twin pump 5 hp compresors, and even those lacked to run a DA and straight file like needed. But I have 99% of my body work done, mainly some blocking primers and top coat. I am just trying to get by for now, as we will sell this place in about 1 1/2 years and buy further west and build a half *** shop and add a good compressor there. Don't want to buy it now and have to move it along with everything else!!
I agree the HF compressor will not be what I need but just wondering if anyone has bought one and done any body work one.
My friend bought an existing small town body shop along with a home made spray booth from basically an outlaw. The outlaw had the shop financed by the owner, which foreclosed after the dude did not make a payment for 2 year! Then this sucker hires a lawyer and sues the owner!! It is waiting court date. Such stupid people in this world. It had 2 compressors but one was sold off and what is left is not really adequate either.