Welcome back. And such a great place to come home to, Colorado. ReTIREDing is great, highly recommended, do it asap.
As for buying your own body armor (and other assorted goodies to hopefully keep you safe), go for it. I did that for 30 years, the junk the state issued (or did not issue even tho it was available) was lowest bid. To be avoided at all cost...
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OBG