If the eccentric bolts are truly stuck inside the bushings, then they will need to be cut and the bushings replaced anyway. The replacement bushings are available on Ebay. FCP is also a good supplier.

Also, at 100k the upper control arms are nearing the end of the line, especially the forward ones. The ball joints (2) are definitely toast at 100k.

Since it seems you are not DIY'ing this, do yourself a favor and get it all done in one sitting. Going piecemeal will simply add to the cost. But I would recommend against doing this at a dealer, the cost will easily be double or more.

Nevertheless, the results of this job are awesome. I did all of this stuff on my E70 at 130k and that was well beyond the due date. The E70 is a heavy vehicle and roads around Maryland are hardly autobahn quality.... Once done, it transformed my car.

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2003 4.4i black ext./black int./black headliner (kid's runabout)
2014 535d X-drive, M package, silver/black interior

Sold but not forgotten:
2009 E70 35d, black ext./black int./black headliner (sold 2021)
2006 4.8iS Le Mans blue/cream int./black headliner, SOLD in 2012 sadly...

Other hardware:
2015 Cayenne S (wife's new DD and definitely wroooommmmm)
2016 Tundra 1794 edition crew cab, luxo hauler
2005 Tundra crew cab, weekend hauler. Sold after 150k very happy miles.