Who makes a quality urethane motor mount for the 1973-76 V8 Dart/Duster/Valiant models?

OOoof.....

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The rubber insulated motor mounts can be bought for less than $20 each, the urethane inserts are $58 through Jegs. Add in shipping and I'd be around $120 for rubber insulated ones that I convert myself.
Yeah, the difference may be around $100 to get the Schumacher mounts. Maybe I don't need the urethane since the cars I need them for won't be drag raced and won't be with slicks....