WP Woo Customizations

I am in need of a WordPress developer with experience in WooCommerce to customize my eCommerce site. Specifically, I require functionality and feature customizations. I have a detailed list of the required changes and updates. There is a strict deadline for this project, so time management skills are important. Ideal skills and experience for this job include:
- Proficiency in WordPress and WooCommerce
- Experience with customizing functionality and features
- Strong time management skills
- Ability to work efficiently under a strict deadline

I'm Using those plugins
- WooCommerce Product Variations Swatches.
- Sales Countdown Timer


- Need to set one of variations is default to show the countdown on products list. (sometime there is variation sold out, so direct set other variation is default).
- need to make all variations if have image, always show variation image as option on front-end.
- Need to hide add to card / buy now for any products / variations sold-out OR countdown is ended.
- hide add to cart & buy-now for upcoming products.
- Show regular price and sale price for upcoming sale.