Check out E-Bay. I found several that fit youir description but passed due to lack of blaze o.
Good luck.
And the obvious question. Why no blaze orange?
Take a guess....
You want to hide from everyone??
https://wingworks.biz/shop/wingworks-ballistic-vests/ here is there site
Tenzing makes a 'loden' colored vest. I personally have the blaze color and LOVE it.
http://www.tenzingoutdoors.com/specialty-packs/tz-bv15-upland-bird-vest-pack.html
I have a WW vest with no orange. Thought it would be nice for Dove and I can wear enough orange in other areas. I think you can even get a larger bird carrier pouch for exactly what you do Chris.