I need letter for Charity

Kind of letter: Business
Num. of words: 400-800
Topic: Asking charity for franchise.
Tone: Formal/Professional
Outline & Structure: Need letter asking charity for franchaise or cooperation as charity shop. So we have money to open charity shop and we need permission to open the charity shop under their name (logo ect).
Structure:
1-about us, so, short story (with experience as a volunteer in the charity shop,live in lancaster,37 years old, passion for helping )
2- story why do you want to do? I leave it to your creativity ( you want to join one of their project that you know, main project is for the protection of elephants, you need to understand the problem)
3-idea for collaborating as a charity shop (an open question how the viewer they cooperation, the benefit for both )
4-final ending i leave it to your creativity (hope for a cooperation ect)

Letter must be written as a private person. Additional questions please ask.
Extra notes: Additional questions please ask.