Dating Website and app developer

Hi, I am looking to develop a website, App (Android and IOS), mostly it will serve as dating app like "Seeking Arrangement" But i have some custom features to be added which will make it different from other apps. So basically this is a platform where man can find sugar babies, gf, girls for vacations, and many more. I am listing down features step by step below. 1. Unlike other dating apps, matchmaking by swiping is not what I am looking here. Instead we will have filters for location, age, interests, and then we show them the available profile. Like let's say a guy is looking to rest on his vacation in Thailand and we have some girls registered on our website in Thailand. He will get to the profile, check her photos and videos and see what she is offering and the prices and if interested, he will click on 'interested button' he have to buy these coins in order to have these option enabled and then girls get back to her with he availability. And he can buy her contact from us (for which he is again supposed to pay from coins) . User can also request for demo paid video call if the girls have opted for it. 2. Now when girls register on our platform we make sure to verify them, registration for them is free. And they have done option to tick and untick the services they are offering, like ' ready to travel, looking for sugar daddy, long term, short term, gfe, Ons and many more. These will be shown on thier profile. They will also have option to make their profile visible to just premium members or all users. They can upload their videos and photos on public and private. They will have a bio, what they are looking for, their interests and their beauty features. They can turn on and off thier profile as per their availability (let say girl is available only on weekends so can show this on their profile their working days and working hours. 3. Just like onlyfans, girls will also have option to share this exclusive content on our website and customers can subscribe to them monthly, weekly or yearly or just have access for once. 4. The best reference website I could find on internet was this " [login to view URL] " . Only the part that how the girls profile will be listed and sorted and filtered can be taken from here and of course with much better UI. 5. So overall it's a mixture of seeking arrangement app and the website mentioned above with some additional custom features. It will be done from scratch, we will have more features like any other dating app including video call options and passport option, hide and show festires and most of the things which any dating app offers. And I think we need admin panel as well from where will regulate and verify all profiles. We can start with minimum features and divide the project in two stages. Now I am looking forward to hear any suggestion and feedback on this project. I would like to have complete access on the source code and would like to know how many months maintenance and support will be provided by you. And how many trials and upgrades are offered in your package. And also let me know the approximate time and budget for this project (web, and app).