Pavilion would consider this work having developed the multi-lingual plugin already (extending that where appropriate as part of this might make sense - if not this could be standalone).
You can book in an initial consult with our project manager @Ellibereth here: Calendly - Pavilion . Eli can explain what we typically do in these kind of jobs, including timeline and budget. We’re a cooperative, so our rates are reasonable (no company overheads).