Reproduction Parts Questions

[Super_Dave]

My '74 project is in the middle of getting the body and paint done. I am sourcing parts and have a couple of questions:

1. I am replacing the side view mirrors. Most suppliers are in the same general price point. However. . . Sherman has their mirrors priced $20 higher per mirror than AMD, LMC, Top Banana. . . Are Sherman parts that much better that they can justify 38% more than anyone else?

2. In ordering my rubber parts, I see where some suppliers are selling the UPPER DOOR SEAL and specify "the one that goes on the door." My '74 didn't have any door seal on the door. . . just the one on the Cab. Am I supposed to have an UPPER DOOR SEAL on my door? If not, why are so many vendors selling one for a '74?

I need to order parts ASAP, so any help will be appreciated.

Dave