Tip size a little big for finish paint, ok for primer. Don't know where you are located but be aware of temp and humidity, choose appropriate reducer - slow, med, or fast drying time. Also found if spraying panels off vehicle hang in relation to placement on vehicle,. Gd luck

Looks like your on your way. A few suggestions. A better gun for small compressors is a conventional or lvlp gun. Something that uses under 7-8 cfm. Also, I can tell your gonna have water issues. The main thing I see is that your water seperator/filter is too close to your compressor. You'd be better off having some length of verticle air line loop before the seperator with a way to drain water at the bottoms of the loop, ball valves and drip legs. The seperator is gonna get overloaded if it's too close to the compressor. Definitely use a filter at the gun to keep fisheyes down. Use a paper style filter. That compressor is gonna run continuously. It's gonna be pumping hot air into the tank and condensing water so water separation is gonna be real important. You might try slightly cracking the drain valve to continously drain as your spraying

Send that compressor back RIGHT NOW it doesn't have the scfm required and will only drive you mad 1.7! Tip Is suitable to spray gelcoat so take that gun back as well

Your fluid tip and air cap are to big . I’d test run the air compressor and your complete air hose and filter setup before you get paint going. Hook it all up set your gun at 28 pull the trigger and hold it and watch your gauge and see if your compressor can keep you at 28 psi the whole time. If not you’ll have issues keeping a nice spray pattern. You could paint individual panels and make work. Good luck!