Hello fellow sewist! I just replied to recommend pdfplotting before seeing your comment. I've also started using theplottedpattern.com recently because she lets you print specific size layers, which was always one of the cons to pdfplotting for me.

I get a lot of large format pdf sewing patterns printed from a site called pdfplotting.com. They aren't local, but they are a small business and I've used them often. They have a number of options and sizes and you might be able to find something that works.

I have been wondering if that's what they are, but we don't want to risk touching them without knowing for sure.