Industrial or shop compressors are a double-edged sword. Sure, you can get all the air you need quickly because a typical airbrush doesn't use a lot of air. But, they make an awful racket, and if you're like me and build into the wee hours of the mornings, a compresser going off in an apartment is like the alarm clock going off...
If you buy a regulator/moisture trap combo, especially if it's a shop-sized version, the moisture trap is generally decent sized. This acts like a tank in a manner of speaking, as the pulse from the compresser head is absorbed into the moisture trap. The regulator balances the flow as long as your incoming pressure exceeds your outgoing pressure.
As for the quality of kits...it still makes me laugh when I hear guys complain about an Academy kit or a Trumpeter kit...I grew up building old Frog and Airfix and Aurora kits...you wanna talk about crude, no-fit, warped, plastic??
Bah...you guys are spoiled...we had to walk to the local hobby shop, 25 miles away, with no shoes, in the winter, just to buy a Hawk kit with our allowances...
Jeff