Build an Online Store

A rails 5 e-commerce app for educational purpose. 4 page max. Will be hosted at Centos/Ubuntu Server at digital ocean. I have good knowledge about programming but not about Rails at all. I will participate at development enviroment setup if needed or agreed. But i need for sure: Step by Step explanation about rails app costruction process. It must be like a full set guide at word file. Frontend have solved by pro web kit which include a gem. If you want we use the gem. My SQL as dbms but oracle 11g will be a huge plus. But install OCi8 is a little bit disaster. Your choice. Budget is limited. I offer plus your offer the web kit which cost 48$. Regrats, James D