Well 300 test miles on her now and she's performing beautifully!
I figured this is a good thread to document all (most) of the things I've done thus far... still working to make sure every nut and bolt is accounted for.

* All new fluids/filters:
Oil and Fleece filter change – OEM MB
Transmission was also gone through and serviced including a new filter, flushed, connector seal and calibration with MB Star SDS – OEM MB
Rear Differential serviced with BG gear oil
Power Steering fluid - OEM MB
Coolant - OEM MB
A/C Charged
Air filters - K&N
Cabin Filter
Fuel Filter - Bosch

* Other Completed/Maintenance Items:
Yokohama Avid Envigor Tires in Factory sizes – about 1k miles on them
Front wheel bearings greased and adjusted – OEM MB
Vogtland Lower Springs – DOT 5 pads front and rear = No rubbing … total drop .5-.75’’
Alignment just done – after springs installed
Freshly painted front, rear bumper and grill – look like NEW and match perfectly
New Drive Belt
New Front Lower Ball Joints – OEM MB
New Instrument Cluster bulbs – OEM MB
New Power Seat Relay – OEM MB
Steering Stabilizer
2 New O2 Sensors – Both left and right pre cat sensors - Bosch
Newer Battery and Bosch Alternator
Rotex Gold Brake pads