Hey,
Regardless of how you choose to go about your development, the actual layout design needs to keep the primary consumer in mind. i. e. if 80% of the customers are going to consume the content in Arabic, it’s best to tailor the design of the website to that demographic and then this guide to translate the content to multilingual options:
https://webflow.com/blog/multilingual-website
Please bear in mind that even if the webflow templates are visually impeccable, they all need to be specifically tailored to your business alongside with other things like CMS/SEO.
I hope this helps. If you need more assistance, I’m down to help you out to fine tune the templates you’ve chosen, for the according compensation.