Divi Website

I've been using Divi to build mainly simple websites, but now I need to do a complex project that requires WordPress plugins and probably some code customisation and since I need it as fast as possible I do not want to take the time to learn it. It will be a platform where people are going to buy some items, and at the same time for each buy they will qualify for a giveaway in the end of each month. Note: Will not be needed an e-commerce function since the payment should be done manually (eg. transfer), just need to reference his email/phone so we can register it and add the entry. Each item will have different values to choose and should give the member 1,2,3, etc. entries accordingly to the value; Referring a friend to register and buy will give another entrie; Sharing on social media another entrie; Each member should get its own custom dashboard so they can see how many entries do they have in the current month and the buttons/links to share for inviting or posting on social media The main page should show how many members have bought items in the current month (not per all entries earned but for each item bought only) Thank you