Link virtual dispensaries

I seek an experienced freelancer to link 5 different virtual dispensaries for therapeutic-grade natural medicine supplements. Must have experience in web design and development and expertise in linking virtual dispensaries. I have accounts with several supplement manufacturers. I need my dispensary accounts linked and optimized so anyone searching for supplements can find it, go to the manufacturer's website to place their order, set up shipping, and pay. Please send examples of other projects you set up for virtual dispensaries.