Use it then flog it on ebay if you don't intend keeping the car any length of time 

I'll never be selling it - sadly the only way it'll ever leave my posession is if it gets written off (i've said that about 4 cars now

)
I can't really justify the cost at the moment as i've not only got the correct spline key but i've also got a set which includes the one needed so i've got 2 already
