$811 for steering rack is way too high. Maybe the $811 includes tax and other parts/shipping, but you can get a re-manufactured steering rack for $245 from this website. Not sure how reliable re-manufactured parts are though. Also, if you buy the rack yourself and have a shop install the rack the shop will not warranty the part. So if the rack fails you will have to pay for the labor to uninstall and reinstall the warranty replacement.
2005 CHRYSLER 300 C Rack and Pinion Complete Unit
Here is another website that sells a new Mopar steering rack.
They charge $413. The link is to the Touring rack which is cheaper.
The $413 is for the Performance Suspension. I think this is the 300c.
MSRP for the rack $574, which is why the $811 is way too high.
Mopar Parts for Dodge, Chrysler and Jeep: MoparPartsAmerica
Supposadly the inner tie rods can now be purchased from Chrysler and replaced.
This change occurred about a year ago but it is not common knowledge.
See this link for the install instructions from a Chrysler manual.
LX Forums Modern Mopar Muscle - View Single Post - Help changing inner tierods
At the moment I don't have the part number for the inner tie rods.
$225 is probably about 2 hours. That might be about right for a shop that does not know the car.