Just so you know, Home depot rents tools but tools are really dirt cheap anymore.
Really all you need is a circular saw with a bevel adjustment, clamps (to hold the piece of 2x4 that you will use to guide the circular saw), corded or cordless drill to screw things in and drill holes, and maybe a router if you want to make fancy schmancy recessed areas like for the tract of the glass or probe channel or even pretty rounded corners.
I may or may not like to do home remodeling and may or may not be a little bit of a handyladyYoutube has tons of builds on tanks and enclosures. Check out serpa designs for examples on plywood builds. Guy is a real genius with vivariums