Stihl FS44 Weedeater ignition coil help

[artrip]

I have a Stihl FS44 Weedeater that I need to replace the ignition coil on and I was wondering what size torx driver do I need to remove the clutch drum with, and also does anyone know what kind of coil will crossover to fit a Stihl Fs44 Weedeater since the original coil is no longer available anywhere.