Is ECS my only option for a date coded windshield? (Problem is now resolved)

Hello All: I recently broke my windshield in my 1974 Duster and will be replacing it with the correct date coded part. Does anyone out there know of any other outfits that sell date coded correctly marked windshields beside ECS? ECS does a nice job, but it takes three months for them to deliver a windshield. Any ideas? Thanks - cruiser