As per title, I would like to create an exchange and am able to pay what is fair for a small to moderate size project.
Ideally I would like to pay 50-100 eth in total, including any server requirements.

Please recommend me some possible avenue to find such professional.

I cannot consider cheap freelance options because I need someone whom I can trust not only in their competence, but also in their morals (since there would be people depositing funds in the exchange, last thing I want is paying little and having the dev himself hacking the exchange).

Thank you.