I very much enjoy creating languages; it's a hobby unto itself for me (in that way where I'll do it cheerfully without even having a story to work on it for). If you're interested, I'd be happy to work with you to help you get started creating a language, and help you out with the bits that deafness makes difficult for you. It's a good excuse to play with a new language.
I wouldn't expect monetary reimbursement; an acknowledgment mention in any books or webpages you published using the language would be more than sufficient. ^^
I understand if you don't want to work with a perfect stranger on language development -- but if you're interested, let me know and we can discuss it privately.