Shopify Store Product Upload

I need help adding 100 products to my Shopify store from another business website. The products should include their size and colour options.

Key Requirements:
- Copying product descriptions verbatim from the source website
- Downloading and uploading all images from the source website
- Keeping the same prices as in the source website

Ideal Skills:
- Extensive experience with Shopify
- Attention to detail
- Ability to follow instructions exactly