I found this review: http://www.paintspraypro.com/best-spray-gun-for-lacqu er/
Don't know how reliable these reviewers are, but the Kawasaki gun ($30) app ears to be a reasonable choice, for the low price, despite it being a sipho n feed. I had initially thought, maybe, a gravity feed might be an upgrad e to my previous (limited) spraying experience.
If this gun lasts a year, then it should be worth the little investment, bu t I think it'll serve my needs for longer than that.
I hope the local Walmart has the gun in stock. I want to spray a rustic cypress bench, today, so I may have a follow-up review. I'll be spraying water based Varathane, on the bench. I brushed on the first coat. This bench will go with the cypress trestle table, I made recently. I have som e chairs, in mind, to build, also. https://www.flickr.com/photos/43836144@N04/?
For any hobbyist/DIYers, who may have considered purchasing (minimal) spray ing equipment (upgrading? from their previous brushing or wiping on a finis h), maybe my pending review may help them decide, without having to invest in more expensive equipment, for good results. I recall, long ago, when I first thought to start spraying, I was intimidated about spraying. I dis covered it's easier and have better results (vs brushing/wiping), than I th ought, so maybe my review will help someone, else, decide to try spraying.. .. seeing as how the investment can be somewhat minimal, these days.