Helicoil or timesert or what else?

[fmugur]

When talking the wheel carier out I ran into seized bolt which came out eventually but a piece of thread was stuck right at the top of the bolt and pulled it through. So the thread in the wheel carrier is damaged and I need to fix it.
I looked into helicoil and timesert although so far I found only helicoil available locally.
The thread in the wheel carier is about 20mm, the helicoil does not cover the entire length. I assume I can use two coils to fill up the entire thread.
The other option is the timesert which is I guess better and it comes in one piece.
Did you guys use any of this stuff?

The damaged thread in the wheel carrier is where bolt 5 goes in.