I've been creating art for some very large wall graphics (approx. 23'x10') in Illustrator CC. I've been cutting the walls into 5 sections, creating separate files and laying out the art at half size but I'm still ending up with really large files. All of my art within the files is linked. The Jpegs I'm linking were saved at 300ppi, which I assume is necessary for good resolution, so I thought that could be making the file large. But do links make a file bigger? I assume the answer is yes, since that's really all that in these files. Should I reduce my link ppi? The links range from 8MB-28MB each.
The final Illustrator CC files range from about 55MB-75MB, but of course, the printer needs EPS files and those range from 700MB-2.25MB. Is there anything I can do?