I have to admit that's a great looking truck. In the interest of full disclosure, it looks just like mine. :B
One cosmetic thing I did that I think makes it look a lot better is I removed all the badges from the front doors. The only thing I left on the sides of the truck are the C badges on the fenders, and I really like the way it looks that way - much cleaner. They did a nice job with the lines on this generation of HD Rams, imo.
On the oil filter, it's not tricky. Get an oil filter wrench that attaches to a ratchet and fits over the end of the filter. They're a few bucks online. You can slip that into the hole in the finder and loosen the filter, and then keeping it upright drop it into a ziploc bag. Close the bag and you can pull the filter through the hole without spilling a drop. Spin the new filter on, tighten up with the wrench and you're set. Only takes a minute and no need to remove the intake or anything else.