Anyone buy and sell vehicles or fourwheelers on the side?

Once I "retire" from the military in about 6 years, I plan on keeping myself busy with a number of side jobs that I enjoy, one will be running 501Parts, and the other will be finding cars and trucks that I can fix up and sell. I have dabbled in it a little before and I truly enjoy it. I do all of my own work so I wouldn’t have to pay anyone, and mostly deal with small 4 cyl trucks, they sell really well around here.

Just wondering how many actually dabble in buying and selling vehicles or fourwheelers? Any thoughts on getting a dealers license and having a small scale operation selling 1-2 cars a month for supplemental income?