eBay Listing Automation Bot Development

I’m an eBay dropshipper and I’m looking to hire someone to build a fast, reliable listing bot. I’ll explain exactly what I need:
* I source products from AliExpress. I’ll provide product links (around 50–100 at a time), and the bot should open each link and generate a complete eBay listing automatically.
* Title: Must be highly SEO-optimized within eBay’s 80-character limit (not copy-paste). Similar quality to AI-optimized titles.
* Images: Use AliExpress images, including handling variations (color, size, model, quantity). The bot should correctly map each variation to its corresponding image.
* Category: Must select the most accurate eBay category automatically (very important).
* Item specifics:
* UPC: Does not apply
* Brand: Unbranded
* Country/Region of Manufacture: Australia
* Other specifics (color, size, dimensions, etc.) should be extracted from the AliExpress listing.
* Pricing: I want a flexible multiplier option (e.g., 2x, 2.5x, 3x based on AliExpress price).
* Shipping: Apply my preset (flat $1 shipping).
* Parcel details: Always set to “Irregular parcel”.
* Promoted listings: Default to 10% ad rate.
* Integration: The bot must connect to my eBay account and directly create and publish listings.
* Performance: I need high speed and stability. Target is 1000+ listings per day (I can upload up to 250,000/month). It must run smoothly without bugs or lag.
This bot is only for listing; I’ll handle order fulfillment manually.
Let me know if you can build this, what tech stack you’d use, timeline, and cost. I can also share a screen recording of my manual workflow for clarity.
Thanks.