No, they were not the Drake cars....I think most of the Drakes had multiple domes. Pretty sure they (the Hobbyhills) retailed at $299.99. I know Bob Anson painted many of them. Hobbyhill also brought in a line of very colorful reefers, which I think were also decorated here in the states.
Simon
Some of the WAD cars are single dome.
The Hobbyhill reefers are a really accurate ACF type II with the deep fishbelly center sill... and pretty common though not always reasonable. I paid $195 for my first one in 1994 when they came out, and they stand up well against today's brass.
If they would have made an AB brake version with replacement steel ends and roof the cars would probably fetch 500 bucks today given the rarity of late steam/diesel era reefers.