Hello I am AAGGMM
as I have read your project description, you want a small powerpoint work which is about 20 minutes or less to be finished, however you have mentioned that 40 hrs / week (this is not clear to me) although there is no problem I can design a powerpoint presentation regarding designs, layout, colors (this point I let you to select the colors), animation, transition...etc)
If you find my offer interesting, please feel free to contact me.