Hi,
interesting task. I`ve already done similar tasks.
Can you specify you Magento version and provide a link to you store?
As for my experience, please feel free to analyze some facts that gives you reasons to hire me:
► I`m head of UA developers team which have 3+ years experience in Magento, Yii, Laravel, Symfony, Magento (feel free to see my portfolio);
► 2 guys of my team are Certified Magento Developers;
► experience in building compound marketplaces and multistores;
► high engineer skills;
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✔ Hope for your answer with an eye on long-term cooperation, Vladimir.
Chat me here or via skype: diak1986