Asslam o Alaikum ! I have checked all the links and I understand you want to customize the flatsome theme, keep it RTL for arabic language and make ecommerce pages like example website.
I have 10 years of experience in WordPress theme customization, recently completed a complex customization job, you can see in my reviews.
I can do it with upmost quality, within time and within your budget.
Wa salam,
Shafiq Ahmed Kayani
enovtec