Reskin or modify existing 5 page, all text, brochure website which is using 2016 wp default theme.
Looking to make it look a bit more professional, only need to modify with a free minimalist (or low cost theme.
I will acquire and install theme that you suggest (and i agree with)
All you have to do is 15-20 min of work to spiff it up, to look good on ios and android phone, tablets.
If do acceptable / reasonably price job on this project, more work may follow, setting up shops, forums.
1) examples of 4-5 websites you have recently done, and cost to do similar site
3) estimated cost