Convert Vendor CSVs to Shopify

I run a Shopify-based furniture store and every manufacturer I carry sends a different price list in CSV format together with product images. Each file can run into hundreds of SKUs and every item may have multiple options—wood species, finish colour, fabrics and more—already laid out inside the vendor’s sheet.

What I need from you:

• Convert each vendor CSV into Shopify’s exact import template, mapping every option to the correct variant fields so the products upload cleanly.
• Attach the supplied product photos to the right variants and have those images appear in my store once the CSV is imported.
• Put a simple, repeatable process in place so I can refresh prices every quarter without rebuilding the whole catalogue. A script, a workbook with look-ups or an app-powered workflow is fine as long as it is clearly documented and works for additional vendors I bring on later.

I will provide the original CSVs and full image folders. You return the Shopify-ready CSVs, confirm the images upload correctly in a test import, and give me concise instructions (or your automated tool) for future quarterly updates.