$80 plus shipping by USPS Priority in the US from 38133. Each about 10" front-to-back and just over 3 ridges wide (as shown), so they'll cover a hole less than 8" long & 3 ridges wide. Includes self-drilling screws & mastic sealing tape (TackyTape). For info on purchasing one, e-mail me thru my profile here.
As of May 2020, I have several sets.
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