Hi,
In principal, you can create with all of our themes a one page site.
However, our most suitable one page theme is Leader.
Not all of our themes has full width layouts.
Here are some examples:
http://www.mystorin.com/
http://www.netmii.co.il/
http://erezbit.com/
Elementor free also includes templates. The Pro version has extra templates.
The contents are RTL but in English.