Hi, i can replicate your image in Illustrator, and define layers for the different components so it is easy for you to adjust the colour inside the sphere. Alternatively, i can deliver multiple versions with the different colours you need.
I will complete this within 1 day, and have specified 2 days to account for our time differences as i see you are based in the UK.
Please contact me for examples of my work, i can share specific illustrator examples, such as my profile image which is a self portrait vector i created in Illustrator.
Thanks
Kia