As I am interested in a Half rear cage R26r style, I quoted a company for one. They wil do one for megane II en Megane III coupe for 635,- Euro, thats 523,- pound. It's a lot cheaper than other cages, so if there is any interest maybe I can arrange a groupbuy..
Try Shaun at Sw motorsports in leyland He made and fitted one for me,and it's a cracker http://s252.photobucket.com/user/jo...F-4DD8-A397-1720EBED8CF6_zpslndcwm8k.jpg.html
Yes it will have the cross and diagonal. Also no drilling will be needed, it makes use of excisting bolt points