Unfortunately, the Rockinbetter's had no official tie with Tokai, other than they were brought in to the UK by the UK distributors of Tokai, called 'Tokai UK'.
They're good, in as much as they are through neck, and the necks are very similar to the Ric's they're modelled on. The downside is that the bodies are slightly larger and wider. Still great basses though. Another to look out for is the Bass Collection Californian, which is basically the same bass with a different TRC.
The FB Rickenfaker group is a good place to go for info, though mainly based on recent Chinese fakers, or 70's MIJ fakers.