Great idea!
One thing I’ve found over the years (in Vex IQ more so, but also in Vex EDR) is that many people are unaware of the free resources provided by Vex & its partners specifically for education & training. They have an online curriculum for building and programming (although I’ve only used the RobotC one up to now, so I’m not sure how good the VCS one is). They have lots of getting started guides for hardware / software as well as how to start a team guides.
http://curriculum.vexrobotics.com/
https://www.roboticseducation.org/documents/2017/09/how-to-start-and-organize-a-vrc-team.pdf
There are also places for those elusive “robot build plans” that people keep asking for.
http://cmra.rec.ri.cmu.edu/products/cortex_video_trainer/lesson/index_setup.html
(Here, they provide step-by-step instructions for Recbot, Squarebot, Clawbot, and Swervebot)
(the great @jpearman put this open source info up years ago and it might be a good next step)