In all honestly all those depend on the number (possibly nationality or gender as well) of the people that come. I have never dove there myself but just began researching.
Can’t put a number on expenses but:
Buddy needs own gear, although I might let someone use my GoPro.
Accommodation, starting at Jeddah, will probably be at the most convenient beach resort in terms of dive centers and proximity to shore. No idea how we get to Farasan Islands, might be a trek, unless I bring a car...
Permissions: using my passport, dive certifications, and MAYBE people I know in Jeddah if I can get a hold of them.
Time: approx 2/3 weeks
Rough sketch of my plan, totally depends on who wants to join and their summer schedule. I’d prefer serious inquiries by message or email: marwanalenezi@gmail.com
Thanks