Flutter Mobile App Development

Hi,

i have purchased a mobile app from themeforest and i would like some custom work done.

custom work list

1) integrate payment gateway peach pay - https://info.peachpayments.com/
2 )integrate live tracker once order are accept
3) change layout - add and remove a buttons
4) create push notification i.e one to many (customer click on a job , jobs gets sent to many vendors that is assign to that category )
features are from this app https://codecanyon.net/item/thinkin-services-on-demand-service-app-urbanclap
5)install app admin panel on hosting site
6)config customer and provider app with admin panal
7)Reskin app (i.e colours ,splash screen ,app name, logo)
8) config push notification
9) config OTP
10) upload to my google console (playstore)


app - https://codecanyon.net/item/ondemand-home-services-business-listing-handyman-booking-with-admin-panel/31658817?irgwc=1&clickid=2uwWPWVkCxyLUbHwUx0Mo3EtUkB1tQU9vTGww00&iradid=275988&irpid=2849964&iradtype=ONLINE_TRACKING_LINK&irmptype=mediapartner&mp_value1=&utm_campaign=af_impact_radius_2849964&utm_medium=affiliate&utm_source=impact_radius