This is a very simple job that involves 3 distinct steps
1. researching available products. Record product ID number. Products prices and descriptions will all be available on one site but the graphics will involve going to the individual manufacturer sites. You will need to download suitable graphics.
2. Organize categories on ZenCart
3.. Populate Zencart with the product information you gathered. Input pricing and Product ID etc. and upload the photos.
That's it.
Further details below.
After you've researched the Initial product slate you will submit for approval. Same with the graphics.
To do this job you should be familiar with ZenCart, FTP, image manipulation