Where can someone find cheap MREs in bulk? Im looking to buy several months worth all at once, but after shopping around a bit im not really sure how to go about doing it.

The milsurp ones I find on Ebay and Amazon seem to be ransacked, shipping only the shitty ones no ones wants together or are expired to some degree (Many reviews say theyre dated well over halfway into their estimated shelf-life). Most of the civilian MREs I find are either all vegetarian shit, lacking in calories, or are missing components like heaters and accessory packs, on top of the fact that ive never dealt with any of them so I am unsure of their quality.

Does anyone have any idea where to look? What civilian brands have you tried that are decent quality and have a long shelf-life? I'd prefer to buy in bulk as I dont want to spend $20 for individual packs at the local milsurp.