Custom Plastic Pinch Weld Puck

I need a pinch weld puck designed for a 2-post above-ground lift.

Requirements:
- Material: Durable Plastic
- Size: 5" diameter, 5" tall
- Compatible with 2-post above-ground lifts

Ideal Skills and Experience:
- Experience with designing and fabricating plastic components
- Knowledge of automotive lifting equipment
- Ability to ensure durability and stability under load
Opening for pinch weld is only 1/4" wide .and 1" deep. Slot must be rough because these will be permanently attached using urethane adhesive.
Vehicle gross weight is 4000lb 2024 Dodge Hornet .
Will need 4 and there is a strong possibility of a limited market for these .
I maybe able to provide a model made from craft paper . Or rough drawings

Please provide samples or a portfolio showcasing similar work. Looking forward to your bids!