Multisite with subdomains and Toplevel domains.

Hi.
It’s my first post on this forum ?? I’m using WordPress for 3 years. But now, it’s time for me to do something far more advanced.

I want to have single WordPress installation and achieve sth like that.

Main page

• Page One
• Category page (subdomain)
• Category page other theme or just template
• <b>Products</b>

• Product One (new top level domain) – and subpages
• Product Two (new top level domain)

I want achieve that certain subpages gonna have diffrent top level domains.