Custom WordPress Calculators Development

I need two custom calculators created for my WordPress website, modeled exactly after these two:
- https://choicemutual.com/get-quote-now/
- https://choicemutual.com/funeral-cost-calculator/

Requirements:
- Functionality must be identical to the examples
- Modern and sleek design (but different enough to avoid copyright issues)
- Must include custom branding/logo
- To be embedded on specific pages only

Ideal skills and experience:
- WordPress development expertise
- Strong design skills for modern interfaces
- Experience in creating interactive calculators
- Knowledge of implementing custom branding

Please provide examples of similar work done.