UI/UX design for a B2B e-commerce platform (public site + cabinets, 10 modules, Figma)

We are NEWMIND TECHNOLOGIES LLC (Tashkent, Uzbekistan). We are building a public B2B e-commerce platform for cross-border trade between two countries: company catalogs, requests for quotations, contract negotiation, payments, logistics, analytics. Languages: Uzbek, Russian, English (+1 more). Full technical specification (75 pages) is shared after signing an NDA. Scope of this job (UI/UX design): public website, registration and sign-in, company cabinet, product/service catalog, trade operations (RFQ, offers, contract approval), payments, logistics, info and consulting section, analytics dashboards, administration. Responsive. Deliverables: clickable Figma prototype and UI kit ready for a Vue/Nuxt frontend team. Terms: fixed price with milestones via Upwork escrow. The last milestone (15%) is released after acceptance by our customer; fixes of issues found during acceptance are included in the price. NDA and transfer of all rights to NEWMIND are required. Work is performed remotely. Final delivery: 20 December 2026. Please reply with: 1) price and timeline, 2) 2-3 similar projects (marketplaces, B2B portals, dashboards). Proposals are reviewed from 9 November 2026. Quality and relevant experience matter more to us than the lowest price.