If you are gonna build a robotics project, then you need to check out this guy, Black Gladiator. He is an agile tracked robot chassis, low noise, and easy to control…
Those chassis only include the structure and motors, you’ll also need a motor driver, microcontroller, some sort of wireless communication if you want remote control, and code to run it all. Not for the faint of heart!
Let me know if you’re looking for something DIY like that, or something more turnkey, and I’ll go looking for you.
We actually did a build guide on one of the Gobilda chassis that you can have a look into. Its a great guide and can help you with building and understanding how this kind of thing goes together.
Don’t forget also that we have a range of online courses and Guides for different projects, it would be a great resource for your daughter to gain some foundational knowledge on maker electronics.
What are the dimension of the actual frame of the tank and would these dimensions support a raspberry pi 4 or 5. If not what would be an alternative tank that could be used.