Dawes Discovery is fine for touring. You could fit some trekking/butterfly style bars for more handholds and retain the MTB style controls. Although dedicated touring bikes are good/best for touring, most people touring around Europe with a tent and panniers are using hybrid bikes.
This will free up your everyday bike for fast, sporty, fun use. If the roads are rough you may want a sportiff/endurance style roadbike with more generous tyre clearance (using long-drop caliper brakes), lower gears (using a compact chainset) a higher bar position than competition racers