Hi, my name is Marcelo and I'm from Brazil. I am a CS graduated with more than 17 years experience in IT market, and +8 years experience with Drupal. I have some good works at my portfolio, and other minor websites to send you links if interested. I'm with 100% positive feedbacks here at Freelancer.com and I pretend to keep that.
I read your project and I'm very capable to do so. In fact, you have to be careful to realize changes on these templates, since they are contrib and system default, and if go to modify them directly, on the next update of the system you will lose them. It's necessary to create a sub-theme for each template, and then realize the modifications there.
Anyway, this should be easy and it may not take more than one hour to get it done, the price is fair for it. If you have other tasks you want to make (a to-do list would be great, the URL link if it's online too), then I can try to review my price and time expectations.
If all of above sounds good to you, then I hope to hear from you soon.
Regards, Marcelo.
--