Harley SX 175 - 250cc Motorcycle Parts - $100 (Milwaukie)

I'm looking for parts for Harley Davidson SX 175 - 250.
These were made in Italy by Aermacchi from 1974 to 1978.
I need a seat, and the engine cover shown, and probably some other stuff.
When I get it finished the 250 and a 175 will be for sale.
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