Any Idea??

How do I start a VC. I know the size,i even made an awful one,(Gmax)by a plane cube what's the technique,the most dificult part how to built something when you're inside of it?please any help or a link where to find how do i get started?
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=13&t=33336