Installing stock rom again after unlocking the bootloader for D2202

I have unlocked the bootloader for my Phone D2202 and using costum kernel by Mr Vinay, actually his thread has helped me in unlocking the bootloader of my phone and now I wanna flash the stock rom again which I have got from internet as Commercial Stock rom for D2202. I have uninstalled some system applications to remove the blotware. No, i wanna clean my phone. Can I factory reset the phone after removing the system applications? Or should I have to flash that Commercial stock rom again? If I flash it having a custom Kernel and unlocked bootloader what will be the consequences?

This is my first post in XDA. I think you could see that already. So kindly excuse my mistakes.

Thank you and expecting a reply soon.