Need e-commerce magento site builder

General information for the website: liquor Kind of development: Customization of existing website Description of every page/module: Hi, Looking to find a magento commerce site builder who has done previous work with liquor, therefore, understands the specifics for this kind of category. Description of requirements/features: Site would have 7 kind of products: wine - cooler type - vodka - whisky - gin - accessories Looking for to implement: 1- landing page welcoming 1st time visitors with one-time discount box w/newsletter subscription 2- 'membership' subscription where customer can select to have automatic monthly purchases, every other month, every 3 or 6 months plan 3- site needs to detect Ip location as sells would be strictly limited to Brazil (for the immediate) so if a US/eur visitor wants to purchase, site must detect and give a 'sells are limited to Bra residents' 4- combo products (other visitors also bought...) option 5- multi-tier pricing - if visitor buys x amount, special discount can be offered 6- ability to group customers and set individual pricing - so wholesalers can be in one group and give them their pricing 7- site needs to support most Bra electronic payment methods i.e. pagseguro, etc. 8- checkout options of creating an account or guest checkout 9- newsletter signup option 10- mail chimp read-to-use integration 11- posible chatbot integration 12- multiple promo codes integration 11- some sort of auto inventory plugin that adjusts as sales are made with daily notification or so 11- have shared but restricted access to sales, inventory info (to have employees make adjustments, edits if necessary) 12- would need to establish post-project support either by you (would negotiate interventions but need very quick delivery - as you may understand why) or suggest third party pay-per-support kind of services. I might be forgetting some things but this is what I can think of in the immediate. I already have an idea of the template but if you have suggestions, I'm open to hear. Turnaround complete with testing should be around 4-6 weeks Payment methods: Credit Card, Paypal Extra notes: