Chicken with Parsley and Thyme Stuffing and Roasted Potatoes

Melt 4 tablespoons butter in heavy large skillet over medium heat. Add onion and sauté until just beginning to soften, about 6 minutes. Remove from heat. Add breadcrumbs, parsley, thyme, lemon juice and lemon peel and stir gently to blend. Season stuffing generously with salt and pepper. Cool. (Can be prepared 6 hours ahead. Cover and refrigerate.) Preheat oven to 400 °F. Pat chicken dry with paper towels. Spoon stuffing into cavity of chicken. Tie legs together to hold shape. Rub remaining 2 tablespoons butter over outside of chicken. Sprinkle chicken lightly with salt and pepper. Pour oil into heavy large roasting pan. Place chicken in pan. Arrange 6 bacon slices over chicken. Arrange potatoes around chicken. Roast chicken and potatoes 45 minutes. Reduce oven temperature to 375 °F. Starting at 1 short end of each remaining bacon slice, roll up into cylinders. Secure with toothpicks. Arrange bacon rolls and sausages around chicken. Remove bacon slices from atop chicken; reserve for garnish. Continue roasting chicken until meat thermometer inserted into thickest part of thigh registers 180 °F and potatoes are tender, about 45 minutes longer. Transfer chicken, potatoes, sausages and bacon rolls to platter. Tent chicken with aluminum foil to keep warm.