I'd second the comment about "if you need to consider body armor for a second job..get a different one!"
I have 2 sets that lay flat under the bed and only come out for classes where people behind me have loaded guns and bumps in the night. It is HOT when worn for any amt of time...I cannot imagine our LEO members wearing it all day...ug.
When I needed a second income, I considered em all plus and minus..and ended up at the airport hucking packages around for a few hours at night...got a good workout and made enough extra to justify.
Best of luck in whatever you do.
Observe. Overreact. Destroy. Apologize.