In bowl combine the salt, pepper, garlic powder, paprika, rosemary, and mustard and mix until evenly combined.
On a sheet of aluminum foil layer the bacon making sure about ⅓ of the next piece of bacon is overlapping the previous piece. See the photo above for reference. Continue until the bacon layers are the same length or a little longer than the pork loin.
Rub the spice paste over all of the pork loin and then place in the middle of the bacon. Starting from the end of the bacon with the last piece on top you want to wrap the bacon around and overlap the ends. Keep note of which end is on top. You want to have the same side end up on top for each slice. Place the roasting pan on top of the pork loin, slide your hand underneath the foil, press the pork loin into the pan and rotate the pan. This will put the bacon seam down.
Remove ¼ of the maple syrup and brush over the top and sides of the pork loin. Bake for an hour, about 20 min per pound, and when a meat thermometer reads 145°F or 62.8°C. Allow to rest at least 10 min before slicing.
While the roast is resting pour ½ cup of the drippings in a sauce pan with the maple syrup and cornstarch. Heat until the sauce boils and thickens. Serve with the tenderloin.