Help me finish my horn feed design

Hello Friends,

My deadlines are coming up and i am really worried. I need to finish my project as soon as
possible. I am doing a project for educational purpose and need your
help.
Below is the basic design i have started and need to proceed on that.
Please help me.

I am planning to design 4/6Ghz dual band Feed Horn, meeting -15dB half
edge elimination of reflector. Wishing side lobe level better than
20dB and cross pole level better than 30dB.

Please get back to me as soon as possible.

I can pay you hourly during help with my project.

Thanks,
Barry.