Subframe (re)installation & alignment

[panthalassa]

Through a series of recent mishaps, I've had to pull the front subframe off my '09 GTI and replace the left control arm mounting bracket (this thing here). Since it's only held to the subframe by a single bolt, it seems like it would be easy to get it out of proper alignment when putting the new one back on. Are there any tricks to reassembling these things and/or tricks to reinstalling the whole subframe assembly beyond just getting an alignment after it's back on? Also, does anyone know the torque specs for this mounting bolt? Should I replace this bolt (I suspect yes)?

Thanks!

 

[chorales]

70 NM + 90 degrees I think. VW says use new bolts, they use locating pins so they can put everything back on in the exact position it came off.