I just glue up to chassis usb charger an esp32-cam, because they cheap,
Front wheels screwed with m4x25 (m4x30should be better) right into plastic.
tank control and video streaming - esp32-cam
usb charger tp4056
dc motor control mx1508
two tt-motors
52 treads needed, you may print narrow treads if you want build tank faster,
You can find many "tank style" motor control projects for esp32-cam. I use scout32 sketch.
You may use one big front wheel from original mini tank project,
https://www.tinkercad.com/things/9Gz2boBZWbV-esp32-cam-tank/edit

Anycubic

All-metal Mega

No

Yes

200

38