The suggestions above are the best cars for the 5 stripe Tuscan GG1s if you are looking for accurate scale cars.
A total of 10 GG1s got this paint scheme with some in 1952 and the rest in 1953. PRR adopted the large single stripe scheme with 16" Roman letters in 1955 so arguably the most famous of the GG1 paint schemes was fairly short lived even though the fleet did not get completely repainted immediately. Still a great paint scheme on a great locomotive.
MTH cars are not accurate for Pennsylvania. All steel Pullman heavyweights were 80' in length as was the large fleet of over 1000 P70 coaches the PRR constructed in the first quarter of the 20th century. The D78 diner was also an 80' car and one of the more common heavyweight diners used by the PRR. The Budd built Congressional was built with the blunt end on the observation car.
K-Line also made a fairly decent stand-in for the Congressional that may ultimately be easier to find than the GGD set.
