1978 GMC Classic Royal RV in EXCELLENT condition. Many upgrades, improvements, and enhancements. Newer upholstery, cushions, headliner, carpet, and leather Captains chairs. Rear dry separate bath. Beautiful original walnut cabinets, new microwave, and refrigerator. Great mechanical condition (just returned from 400 mile trip) 50,600 actual miles. Original Imron exterior, twin roof A/C and d