Best roll cage for a Dart?

A friend of a friend was going to put a 12 point into my dart for $600.00 labour plus materials.The deal fell through as he is dealing with some harsh health issues.One of the cheaper chassis shops wanted $1200.00 for a installed 10 point, it seems when I looked awhile ago it was 100.00 a point for a cage.I will probably just buy a Chris Alston Chassisworks 12 point and have my buddy (who's a certified welder) help me with the install.