I would just buy everything that your friend is selling because those prices are absolutely unreal, buy all of them and resell them and you'll get double what you paid for them. Even if you had a Nikon I would say buy all of those. The 24-105 for $450 is ridiculous, they are $850-$950 used.
Maybe not the 10-22 for 450 (even though thats a pretty solid deal still), but the 100L Macro for $350? Are you sure it's not the non-L macro? A A 70-200 f/2.8 IS for $750? That's a $2k lens and the cheapest I've EVER seen one was maybe $1100 used. I paid $1500 for mine and I paid $900 for the 100L and thought that was a great deal.
As for the 70-200 having "soft focus," I'm not sure exactly what you mean, but the 70-200 is one of the sharpest zoom lenses I've ever used, so if you heard it's not sharp you heard wrong.
Something just doesn't sound right, your friend has literally the best deal I have ever seen on every single one of those lenses.....They are all like 1/2 the normal used price.