My main concern is achieving seo benefit for my home page,....
Think about why
you want this to happen.
You go into a grocery store for bread. You know right where the bread aisle is. On your way, a clerk stops you and says, "Sorry sir, first you have to pass through our specials section that gives an overview of our store before we can allow you to buy the bread."
Ridiculous comparison, but this is the line of your thinking. Web sites don't rank in serps, web PAGES do. In many cases, getting the main page to rank first for given keywords is the least important thing, what's important is they get to the info they are looking for, which will compel them to explore the rest of the site.
Let's say you have a page, "widget tutorial video," but you move forward and try to optimize the main page for "Widget tutorial video" and succeed. You've effectively divided the "strength" of any indexing between the two. See where that's going?
Let your "home page" be what it is, an index.
Let your specific pages outshine it, they don't always have to enter via the main page.
I have one site that buries the first two pages of results for [geo area] [topic]. The main page is in there, but it's not on top . . . the pages that are most relevant are. As it should be. :-)