how to create folder from list items - copy files into the folder - assign permissions

Hi there,
I need some help in doing this tasks below

- I have sharepoint list and based on the title I would like to
- create a folder in a document library using the title name
- Copy some files to this folder from another document library

- Assign unique permissions to the folder.

I have managed to create folder based on the title name(from a SharePoint list)
But i need help in the following

- If its possible i would like to check if the folder already exist and if not do nothing and if it doesn't create a new folder.

- Copy files from a document template into the individual folders

- Assign unique permissions ( I guess i can call a http request here)

Thanks in advance if i can get some tips etc..