Hello
It looks like you may have the same project on here twice, so I will include my details here again for your convenience.
I have over 28 years extensive experience with Filemaker Pro and have developed, deployed and maintained many instances from very large and complex down through to small more simple deployments.
If you would like to send through some additional information on your project, including what kind of access you are looking to offer your clients with your existing app and which version of FMP you are currently running, I can confirm a plan and provide a more accurate timeline for completion.
Thank you
Darren