Convert Excel Quoting Tool into Internal Web Application

We need an experienced WordPress developer to convert our Excel quoting tool into an internal web application, preferably a custom WordPress plugin. VIZpin supplies access-control hardware and recurring services. Our workbook contains the product catalog, pricing rules, calculations, and existing quote and price-list layouts. Required features: • Desktop-focused interface for employees. • One shared employee login and a separate administrator login. • Customer/company name, contact name, email, project name, and prepared-by fields. • Product quantities, finish choices, partner pricing tiers, and service selections. • Automatic calculations showing partner costs and MSRP on screen. • Automatically generated unique quote numbers. • No employee price overrides or additional discounts. • Downloadable customer quote PDFs showing MSRP only—partner costs must never appear. • A new professional quote PDF design using our branding and existing terms, subject to our approval. • A downloadable PDF price list showing Bronze, Silver, Gold, and MSRP pricing. • Administrator controls to update product prices, service rates, discounts, and defined pricing rules without developer assistance. Initial scope excludes saved quotes, reopening or duplicating quotes, direct emailing, and mobile optimization. Employees will download PDFs and email them themselves. Minimal storage for pricing, settings, and unique quote numbering is acceptable. We will provide the Excel workbook and WordPress hosting. Please confirm hosting compatibility and disclose any required paid plugins, licenses, or recurring costs. Calculations must be tested against agreed examples from Excel, including quantity discounts, custom finishes, SmartKeys, and service terms. Any spreadsheet inconsistencies should be identified and resolved with us before implementation. Deliverables include all custom source code, installation on our hosting, documentation, administrator training, and 90 days of bug fixes after launch. VIZpin must own the custom code and project data. Optional ongoing support should be priced separately. Target completion: 2–3 months from hiring. Budget: Open to fixed-price proposals with milestones. Please include: 1. Examples of similar quoting tools or custom WordPress plugins you have built. 2. Your proposed approach, timeline, and fixed price. 3. How you will verify pricing accuracy and exclude partner costs from customer PDFs. 4. Any assumptions, exclusions, and recurring costs. 5. Your availability for calls during US Eastern business hours.