I was able to get a chassis all built and added a nicer PI PICO Marble that has a onboard SD card for data collection. The chassis was redesigned to v2 this is v1 still as it is a little tight on top of the board for servo connects. Moving to the PICO marble allows me to plug and play a spark fun light sensor, so that is handy. One of the servos is acting up and is jittery so I will need to order a few more. The 3D printed wheels are coming today. Gearing up for a robotics club meeting in my area on the 11th. 

Power is 2 3.6v li-pos in parallel connected to a DC-DC convertor that steps them up to 9v. The convertor allows me to use a cheap USB C 5v charger for the cells. I also added a main power switch as i found out the board I chose only has a soft power switch and leaks voltage to the servos.