534 Broken Links / 404 Errors on WordPress Site

I have a WordPress site with approximately 534 pages returning 404 errors. These are mostly broken internal links from old article versions, deleted pages, and URL structure changes.

SITE: https://fresnotodo.com/

WHAT I NEED YOU TO DO:

1. Run a broken link audit using Screaming Frog, Ahrefs, SEMrush, or similar SEO tool
2. Identify which 404s are worth fixing (prioritize by traffic, backlinks, etc)
3. Implement 301 redirects from old URLs to new/correct URLs
4. Fix internal links that currently point to 404 pages
5. Remove or consolidate any dead/irrelevant pages
6. Run a final audit to confirm 404 errors are cleared

DELIVERABLES:

- All 301 redirects implemented and working
- Internal links fixed
- Before/after audit report showing the 404 count reduction
- Documentation of any changes made

SCOPE: 15-20 hours estimated
TIMELINE: 2-3 weeks
BUDGET: $300-$500 fixed price

REQUIREMENTS:

- Experience with WordPress broken link fixes
- Comfortable with .htaccess redirects OR WordPress Redirection plugin
- Familiarity with SEO audit tools (Screaming Frog, Ahrefs, SEMrush, etc)
- Can deliver a detailed before/after report
- Clear communication via Freelancer chat