Have another look at Paddock site as its not very clear but they do stock both engine types bearings (not sure about there being different widths of main bearings used for the same crank though.....). You can tell the difference because unfortunately the earlier bearings are all loads more expensive than the later ones☹️
I take it youve really assessed the state of your engine as, unless its had a catastrophic failure, Im surprised any of these cars have lasted enough miles to need a rebore!