I finally found some cedar planks at Manard's (local version of Home Depot). The planks are 15" x 5.5" x .75". They cost $4.99 for a set of two and I bought 4 planks total.
Anyway, I took one plank and my handy cleaver and made long spikes. I soaked the spikes and planks for several hours and then pushed 5 of the cedar spikes lengthwise throught the roast. The only seasoning I used was black pepper and sea salt that I rubbed all over it.
I oiled one side of a whole plank before placing the roast on it.
The roast cooked in the oven at 325 degrees F. for a little over 2 1/4 hours (internal temp 165 ish). The smell of the pork and cedar was really nice in our kitchen.
I let it sit for 8 or so minutes and removed the cedar spikes.
This proved to be a little bit of a task.
But we survived and cut the roast.
You could absolutely taste the cedar through out the entire roast and the aroma was distinct and good. We though it was really tasty. If I where to make a sauce or a glaze, which I did not, I think I would make a sweet apple glaze or sauce. Maybe next weekend.