Canadian prices are ridiculous for parts and labour
my stealer wanted almost $10 per plug
Got mine on ebay with free shipping to Canada for half of that
Did my own install 3 weeks ago on my 2010 Hemi
it's really easy, just time consuming
...dealer probably books the job for 3 hours, (at over $100 an hour here)
But you could DIY in about 2 without rushing it and a few beer breaks.
Some say to remove the drivers side tire and wheel well liner to access the one below the brake booster.
I found it easier to just lay big thick moving blanket draped over the rad/engine and lay on my belly to reach the tough ones
You dont have to remove grill, I just had it off the do my supercharger/intercooler install and changed plugs at the same time,
along with the larger fuel injectors and a few other goodies
Here's a few You-Tube vid's that show the same method I used...
HEMI spark plug change 2010 Ram 1500 - YouTube
Dodge Ram Hemi Spark Plug Change Video #1 - YouTube
Dodge Ram Hemi Spark Plug Change Video #2 - YouTube
Make sure you have an actual spark plug specific socket ,
that's either magnetic or has a rubber fitting to pull the old plugs out.
You'll also need several extensions from 1.5" to 2.5"
because you'll have to add/remove them one section at a time under the brake booster where space is limited