Blogspot мodify template

I'm interested in modify the blogger template of this blog [login to view URL] 1. Display a link to the author's personal page. 2. Sorting articles by authorship. 3. Output image in the lightbox. 4. Place the cursor in the search field without an additional click. 5. Pagination does not work correctly - on the second page there are fewer posts than it should be 6. Map of the blog in 3 versions (by category / by authors / archive of the blog) 7. Finishing the layout of the mobile version (now a lot of bugs) If you send me your Google mail then I will send you an invitation to the blog. Once you accept it, then I will make you an administrator and you will be able to more accurately assess the price and terms of work. I want to see everything neatly, conveniently and in the same design as now. Picture help me to explain what i want to see in the end.