is it legal?

NHRA legal. I'm probably never going to get below 11. 5 with the motor i have.
so I won't need a roll cage. But I need to lose weight! To get closer.
I noticed when I had a door off they were extremely heavy. I can get a set of doors
for $80. (Don't want to hack my good ones)plan-A : put doors on and hack them to
Death! Maybe just enough to use the hinges and latch (maybe? ) plexiglass/lexan
good for arrow dynamic, not wallet:violent1: is a window net legal? I think the weight
Loss would help more than arrow dynamics. pros, cons, is it legal?