MORAL of this story:
If you can't do it yourself, go with someone who is accountable, i.e a business=pro installer (plus you support the community since they buy ads here and at other forums)
Our friend saved a few dollars initially but now the stress, anger, lost friendship(?) in my opinion has cost him a lot more.
Now I will step off the soapbox and say, "If you can't trust your friends, hire some more!".
And the torx driver and bits can be gotten at Sears also for around $10 (with a guarantee). I would never buy tools at an auction, too much risk of them being cheap knockoffs.