Vest? Do you mean a body warmer type thing?
If so then I have the perfect thing for you, I moved one out of my wardrobe just today. It's fleece lined XL with multiple pockets all oer the front. Interested?
Edit. It's XL made by Giani Feroti, got it from my step-dad I think, too big for me. PM me if you're interested, yes it's OG so a straight swap for one of those folding BBQ's sounds fine. PM me or reply as I'm returning to the UK on Thursday morning.