Need some help with my small roll cage build

I’m trying to make a small 6 wide rollcage and the front is gonna be the end of me bc I cant find the correct mix of the angled parts (idk the name of them) to make the 180 degree angle but round the good looking ones I made ofc is too wide and doesn’t fit so yeah anyone know the correct combination of them? EDIT: I’ve made it 7 wide and made a pretty good front. it isn’t perfect but I’ll keep it like this so no need to give more recommendations but thanks to everyone who helped submitted...