By the way:
yes, the photos show the battery and ESC velcro’d on. The battery will probably stay that way. I waited on the ESC to make sure I had it in the right spot and it didn’t get in the way of battery access, also I wanted to make sure the CG was right. I have a small plate to mount it to with a velcro strap. I may put that in going forward but velcro works fine as long as you don’t keep removing the ESC and you keep changing the velcro out over time.