In my own opinion...not really. The alum arms are among the most expensive part of any alum hopup for almost any car, usually $25-40 per pair (or sometimes for one side set). I rarely ever see an all-alum buggy, and I can only think it adds more weight which isn't such a great idea, most buggies weigh an average 7 to 7.5 lbs and with the extra alum you're looking at around 9 lbs and that'll hurt the drivetrain and engine performance. I suggest going graphite on the radio tray, center diff brace and perhaps stone guards and even the fuel tank splash guard. Titanium is always good, get as much of those as you can, and get good CNC chassis braces.

Go ahead if you're willing to shell out an insane amount of money, but get a K2 or MP7.5 kit to begin with and hop up from that, it'll be far cheaper.