Sounds fun.
I put 5 days on the bid, but am available to start immediately. Bid is for 3 sizes. I may be able to throw in the fourth size for free depending on the amount of time needed to do design, optimize or re-create graphics to make the 40k limit or the complexity of animations you require.
Do you have a plan/design ready for the ads - or would you like a storyboard design / creative to approve first?
Links to the last 40kb banner campaign I did are in my Freelancer profile.
Look forward to working with you.
Regards,
Jeremy