Lots of great suggestions here. I live in the LA area and there are almost always Phoenix-style trunks for sale on Craigslist or FB Marketplace. Right now there are a half-dozen or more on Marketplace, ranging in price from $150 for a chonked-up but sound and fine-with-a-cover wooden one to a looks-new Phoenix for $550.
It would cost a fortune to have one crated and shipped, but just a reminder that they can be found out and about if you keep an eye on the ads and are patient. I have four I donāt use but just havenāt bothered to list them yet. And yes, I did the cover-to-match thing for different barns and they always looked just fine.
I wish the beautiful ones werenāt quite so heavy. It was a wonderful day when I got my first tack trunk, kind of like getting your first custom boots!