I am assuming this is a new idea and a new endeavor and you dont have any real experience doing this work. . . .

If you are going to do this yourself and you are turning to you tube to do so (this is fine and a good idea), just remember that good tools are not cheap. And cheap tools make it really hard to do good work.

So budget a couple thousand for tools. A good drill (cordless) that has enough power to run continuously for a while is 300 and nice one can be quite a bit more- want a decent chop saw to get consistent cuts- you can spend 600-800 and thats not buying super high end (Festool etc).

Many many years ago I decided to do what your contemplating. I paid myself- aways buying high quality tools and not paying contractors. After some practice your work will be every bit that of a contractor-

Just be prepared- if this is really new to you, its going to go slow as shit and you will rip out more than one part and redo. Thats fine!

Also- be careful. If you buy quality tools they have a lot of power behind them and can cause horrid injuries very quickly (blink of an eye). Work super carefully.

Enjoy!