Upgrade CS6 AEP to AfterEffects 26 and change pixel dimension

I have an Adobe After Effects project that was created in CS6 as a low res project. It now needs to open—and render flawlessly—in AfterEffects 26. Your task is to take the original .aep file I supply,... (Budget: $10 - $30 USD, Jobs: 3D Animation, Adobe Creative Cloud, Adobe Premiere Pro, After Effects, Animation, Video Post-editing, Video Production, Video Services)