Hi there,
My name is Z and I am a Google Tag Manager and Google Analytics Consultant. I have a strong technical background in analytics, and I can certainly help you with auditing your current ecommerce implementation and fixing the PayPal issue, as well as getting your keywords fixed.
Do you currently use any tag management system, or do you use on-page code? Do you universal or classic Google Analytics code on site? Overall, I don't think this would take more than a couple hours of work.
I recently joined Freelancer.com, and I will be very excited to take this off starting with your project. Hopefully this will be a good start to a longer term engagement. Please get back to me with any questions you might have for me. Looking forward to be working with you.
Best,
Z