K-12 White Label Curriculum Research

I'm seeking a dedicated professional to conduct web research and product search for a white label K-12 curriculum that can be rebranded and adapted/modified. The curriculum should be comprehensive, covering subjects like Math, Science, Language Arts, and History/Social Studies, as well as potentially including Art/Music/PE.

Key Requirements:
- The curriculum should span across different grade levels: Elementary (K-5), Middle School (6-8), and High School (9-12).
- The resources should include Lesson Plans, Interactive Activities, and Assessments/Tests, and be neutral in content to ensure broad appeal and flexibility.
- The ideal candidate should have experience in educational research and product sourcing.
- Familiarity with K-12 curriculum standards will be an advantage.
- Curriculum should ideally be accessible in formats suitable for eBooks or web-based platforms, or as LMS-compatible files if available.
- The curriculum must be affordable in cost and have no restrictions on modifications or rebranding after purchase (unrestricted for commercial use after purchase).
- Preferred candidates will have a background in K-12 education, curriculum sourcing, or instructional design. Familiarity with licensing terms and open-source educational materials is a plus.

The selected candidate will research and provide 3 to 5 curated, hand-picked curriculum options within 1-2 weeks that meet the above criteria. For each option, please provide:
1. A summary of the curriculum’s key features, including subjects and grade levels covered.
2. Pricing details, including any licensing information or restrictions.
3. Pros and cons specific to rebranding, ease of integration, and cost.
4. Any recommendations or insights on why each option stands out.