Multi-brand fragrance boutique, how do you run authorized portals for Diptyque, Le Labo, Boy Smells?

Multi-brand fragrance boutiques (think Credo Beauty, Twisted Lily, Indigo Perfumery, Saks Off 5th Beauty) carry licensed lines from Diptyque, Le Labo (Estée Lauder), Boy Smells, P.F. Candle Co., Ranger Station, Maison Margiela Replica. Each has authorized-distributor agreements that gate:

• MAP (Minimum Advertised Price), Diptyque candles can’t be discounted below $74 retail without losing the line. Magento catalog price rules + a price-floor validator on the merchandising side enforces this.
• Geographic restrictions, Le Labo can’t be shipped outside the US for some retailers. Per-product website / store-view scoping handles this natively.
• Brand-page content rules, each brand gets a curated brand page (logo, story, lookbook) and brand-page content is locked to the brand’s style guide. Hyvä CMS templates with brand-attribute-driven content rendering.
• Customer-group price visibility, trade buyers (perfumery professionals, stylists) see wholesale; consumers see retail. Same SKU, different prices.

Brand-specific shipping rules (Le Labo perfumes are ground-only by brand mandate, on top of the hazmat rules) ride on the same per-SKU + per-brand attribute layer. Reporting back to the brand HQ: monthly sell-through reports auto-generated from Magento sales reports + brand-attribute filter, mailed to the brand rep.