George,
I've got a Badger 350 which is about the most basic spray gun and easy to use.I'm still using the propel in the cans,I cant see buying a $150.00 air compressor yet and havent set it up on my big air compressor I use for for my nail guns at work.And the thought of running 50' of hose through the house might get the wife up in arms,as tolerant as she is I think that might be the cut off line

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My spray booth is just a simple card board box.I have a clamp light with a reflector on it which provides more than enough light.
If your going to get a spray gun dont go cheap.I did on my first one and regreted it then I got the Badger.The thing I like about it is that you can buy more jars for it.I also have medium and fine tips the fine being the most used.I think I paid $25.00 dollars for the gun and $12.50 for the fine tip.
I only use the Polly scale water-based paints they have a super selection of colors so you can usauly find the color you need.They even have Rock Island maroon.
If theres one thing I can stress.Is to keep your gun clean.I hand clean my tip after every spraying dont let your gun sit for more than ten minutes or the paint will dry and it'll riun your day.I dont use the gun to clean itself because I think that its a waste of propel.
I could go on for hours about spraying but wouldn't want to scare you out of it,Once you get a spray gun you'll love it,It'll become your most used tool.
The propelant likes to freeze so keep it in a bowl of luke warm water when your spaying,(one of your wifes favorite mixing bowls will work nicely

)
That and some practice you'll be a pro in no time.
I was able to prime some of my work train this afternoon,Now I've got to do the finish color's,or I might clean up the rails and send the E8 and B-units on down the line.
Shane