Custom Android ROM based on Android Jelly Bean

Avg Bid (USD)
Project Budget (USD)
$250 - $750

Project Description:
I need a custom ROM based on Android 4.2 (jelly bean) stock ROM with following change:
When device is first started (very first time or after factory reset), it display standard set up screen where Android asks user to select WIFI; Enter Google Account information. Once that is done, standard Android Stock Launcher is Displayed.

What I need is after the initial set up is done, I need to show user a prompt with yes or no to start another app (you can put any apk to create a simple test app to demonstrate) that is already added to the stock ROM instead of stock launcher app. The prompt need to be displayed as overlay on stock ROM.

If user says yes, this another app (instead of stock launcher app) should be started. If user says No, stock launcher should be displayed.

The above action need to happen only one time after factory reset.

Please respond with approach also and how long it will take to do. Also, please let us know your experience with building custom Android ROM.

Skills required:
Android, Java, Linux, Mobile Phone
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