High-Quality Blog Backlinks Needed

I need 300 high-quality backlinks from blogs to increase website traffic.

Requirements:
- Domain Authority (DA) 50 to 90
- Low spam score
- Use of my specific keywords and anchor texts

Ideal Skills:
- Experience in SEO and link building
- Strong connections with high DA blogs
- Ability to deliver reports and track progress

Please provide samples of previous work and estimated timelines.