From what I've read, Christian and Tony both ran around the 350 bhp mark and both has pretty reliable cars...
I agree with Joe. Depends who does the work and how, hod much thought and prep and corresponding mods are and how much money you want to put into it.

Strengthen and uprate it before it goes wrong, and you'll be as safe as house. But, it will cost.
I'm gonna be doing just this, so it wants to be