I bet that some of the models were of the same family in that it was basically a firmware difference on the control board that would allow a larger capacity format.
It's possible that the larger 370MB or even the 420MB models would work.
However, you will need to do a platter swap out and you will need to do this in a clean room environtment, well maybe a paint box with fans to blow air over the hdd's and another one to exhaust
Of course another option is a data recover house/company which is spendy.