Webshop Customization and configuration - Opencart

Hello, i need someone with experience on Journal2 theme to configure the following into my opencart webshop: - payment - Mail sending - Whatsapp sending Also i would like to extend the shop with following features: - Add the followingt to manufaturers: Address, Location, Description, Email, Categories (domain of activity) - Show Manufacturer short Description below of the product - Browse Manufacturers per Activity category (NOT Product categories) - Browse Products of a selected manufacturer - Send Email to Manufacturer Would you be available for this job? Thank you very much in advance