https://www.oreillyauto.com/shop/b/engines---transmissions/transmission---transaxle/flywheel-ring-gear/452ce82995d7?%2Fattributes%2FprodAttr_10790=%2Fattributes%2FprodAttr_10790%2F164769
This one has the same 13.060" diameter the of the one Jim Carter is selling, it might be worth a look.
