@workin, I don’t have his email address but check out the ohr naava website. It could be that it’s posted on there. As for your second question, I emailed him recently but didn’t receive a response but that could be for any reason. I think it’s def worth a try in emailing him. Good luck!!
I’ve never emailed him myself, but I can imagine that he must have a lot of email to go through so it may take a while (and maybe a few tries) before getting a response. Did you want to email him specifically or a rav?
The email is on the Ohr Naava site.
(adorable might be able to help you out about emailing him, IIRC she once said she did.)