A very important tool is a set of "JIS" bits or screwdrivers. The Phillips screws you see all over the bike are not Phillips, they're JIS (Japanese Industrial Standard). Even if you plan to swap them for socket head allens, you still need to extract them. Plus, your carbs won't be getting swapped hardware, so best you purchase a set.
You can buy a decent enough set of Craftsman tools of Metric components in a box that will take you 99% of the way.
Smashing in the tank for knee dents is a great deal trickier than you might think. Smash it too far and you'll split the welded seam or worse, crease the edges and have leaks. Getting it smooth, flush and elegant requires body filler afterwards. OR, you remove the shell, pound them in, finish them off with a planishing hammer, and then weld it back on. (Not exactly a DIY, Newb undertaking). You can buy aftermarket tanks in aluminum often with the body work done for you. That and a seat/pad.
Spend a bunch of time reading through the
Projects section of different people's builds, ask questions, and discover their sources for parts and purchases. Its a great way to bend your learning curve. There's nothing you listed that hasn't been done by another member, so the experience you need and advice is freely available from folks here. And you will get heaps of offers for assistance and advice to help you avoid making costly mistakes.