If you want to stick with the 6N2 and have the spare cash then go for it......Just consider what else you could get for your money...
Strut braces wont do a great deal! The entire shell flexes quite a bit under normal driving....A full welded in cage might help...
You also have to consider the inherant flex in the suspension system...
Dont get me wrong, people have done exactly what you are proposing and have had driveable cars.....Quite how driveable I dont know lol...
I get the impression most do it for bragging/crusing rights....not for a full on track car...
