Hello
I have go through your pdf file and check the flow of website, yes I am 100% sure I can build this website and would like to be a part of this charity. As your budget is low I'd recommend WP.
Relevant Skills and Experience
Insteed to wix a wordpress platform would be more applicable for this website. I have 5 year of experience in HTML WordPress, PHP, HTML5 , CSS, CSS3 ,Java Script.
Proposed Milestones
$277 USD - Wix website design
Will you be comfortable in wordpress at $250? Please contact me.