Cost, timeline, and your credentials, what does building a trade-supply Magento store look like?

Three engagement shapes, all priced at $25/hr with the math visible:

• Audit, $499 (~20h @ $25/hr). 5 business days, fixed-fee. Branch inventory system audit (BisTrack/DMSI/Eagle), current Net-30 workflow review, freight rate audit, tax-exempt cert backlog assessment. Output: written platform-fit recommendation + cost band + risk list.
• Build, $4,999 (~200h @ $25/hr). 6 weeks, fixed-fee. Catalog + 1 branch inventory connector + Net-30 (Apruve or Resolve) + 5-state tax-exempt cert workflow (CA, NY, TX, FL, IL) + bulk pricing tiers + flatbed delivery scheduling + Magento + Hyvä storefront. Lighthouse 90+ on mobile.
• Custom enterprise, quoted hourly. Multi-branch (10+ yards), full Epicor BisTrack ERP integration, multi-region tax, full milling configurator. Typical range $25k, $120k, but $25/hr math always visible in the SOW so you know exactly what you’re paying for.

Credentials: Adobe Certified Magento + Hyvä developer. Ten years on B2B trade-supply builds across lumber, drywall, plumbing, and electrical distributors. Adobe Certified Expert badge verifiable on Adobe’s certification directory. Portfolio + Upwork public reviews + 100% Job Success Score available on request.

The reason fixed-fee works for me: the trade-supply Magento playbook is repeatable. Branch inventory + Net-30 + flatbed + cert workflow + bulk tiers, same five pieces every time, different ERP and different state mix. The risk is bounded.