A5 Menu Resized to A4

I already have my food & drink menu perfectly set up as an A5 Illustrator vector file. All I need now is for it to become a four-page A4 layout ready for print—same colours, same fonts, no new graphics—just scaled and reorganised so everything breathes and reads well on the larger pages... (Budget: $10 - $30 AUD, Jobs: Adobe Creative Cloud, Adobe Creative Suite, Adobe Illustrator, Adobe InDesign, Graphic Design, Illustrator, Photoshop, Print Design)