Or will want you to buy a new subframe, for a crazy profit, along with way too many hours of $150/hr labor.

This is not a hard job, though it looks like it is.

Take off tires
Disconnect shock tops
Disconnect brake lines
Disconnect parking brake cables
Disconnect drive shaft
Disconnect speed and brake wear sensors if equipped
Support the subframe in two spots with hydraulic jacks
Remove 4-8 subframe to body bolts
Let it down on the ground
Clean up the cracks, weld and gusset
While you have it off, inspect subframe bushings and all suspension parts - it is very easy to change parts while the subframe is on the ground

Then put is all back together.

__________________
Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport