We have spent a good bit of time in Newfoundland (summers only) since 2001. The people are wonderful and the 'rock' is a great place to visit.
I strongly urge you to take your rig. My personal feelings are that I like my stuff with me and I don't like packing and unpacking (that's why we RV ... LOL) and we also travel with a dog.
We have boon docked all over the rock. "If it ain't posted, you can camp there." We have also utilized the campgrounds and have some favorites.
The earlier you go the more likely to see burgs and that is a great thrill. From the water tank hill in Bonavista we counted almost 30 good-sized ones.
We took the long ferry once; we prefer the shorter ride (for the dog's sake and our own).
There are so many positives (cheap lobster and cheap crab come to mind) but there are a few negatives (Little Kopit may disagree with me here). First, unless you are in Corner Brook or St. John's, the choice of veggies is limited. Generally when eating out you get potatoes, carrots and peas. Also unless you are in those two areas, buying books is a challenge (I bring plenty of reading matter ... thank goodness for Kindels). Being from TexaS I HAVE TO HAVE MEXICAN FOOD preferably Tex Mex and there is no good Mexican food on the rock. Trust me I have tried them all! LOL.
For years, I have made list of what I run out of and pack accordingly. Butterfingers are hard to find; hot red hard candy is difficult to find anywhere in Canada; spices for fixing your own Mexican food can generally be found in the big stores. (Little Kopit, you know us and you know we do like to eat local and we also like to shop local BUT with a rig we also like to eat in and be able to maneuver in parking lots.)
Be warned. When you visit Newfoundland, you will fall in love and want to return.
Diann