Stripe Connect Express plus Notion DB (or a careful Google Sheet) plus Mailchimp plus Webflow. Around $60 per month total. Works comfortably to about fifty distributors. Above that, you'll start wishing for SaaS leverage on commission calculations, distributor onboarding flows, and replicated websites. The graduation point is usually somewhere between 50 and 100 distributors; it depends on how disciplined the founder is about spreadsheet hygiene and how much time can be allocated to manual operations weekly.