Bad Air compressor installation

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Hi!
I drove on interstate and suddenly start losing air pressure. Call roadside assistance
in Akron, OH.They charge my 9 h of labor. guy was calling someone every 30 min because he don't have a glue what he's doing. They didn't turn crankshaft damper in "insert pin position "(I saw Rawze unfinished video on air compressor replacement).He keep telling don't worry i know what I'm doing and timing will be done at air governor, and also they didn't tork bolts to spec they just used an air gun!
I want to redone air compressor myself but I'm not sure can I reuse gaskets ( 1 week old)
Or better to buy new one?