Is $23,000 to renovate bathroom for wheelchair access a fair price?

Bathroom renovation for wheelchair access, including demo and installation of new fixtures. The initial bid was $25,000, later reduced by $2,000. - Demo a short privacy wall by toilet - Cut tile/wood vanity in half - Replace one sink with a wall mount sink - Demo existing tiny tile shower - Demo closet wall that shared wall with old shower - Install new 30" x 72" vinyl panel shower, roll-in, with chair - Homeowner responsible for all flooring