Should I have the steering linkage tightened when I get new lower control arm bushings and an alignment? How involved is this?

(Need new bushings SOON because car cannot track straight EVER!! Also, the pops have pretty much subsided (all popped out?!), car is squirrelly at higher speeds, and when turning hard and going fast, any blemish in the road makes the steering feel so loose!)

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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)