There is a salvage yard in Cass City Michigan called Lost Viking I believe. They may have a hood for you. A few others here in Michigan.
Mickeys Sleds & Snowmobile Dpt
(87) · Salvage Yard
Snowmobile & Motorcycle Salvage
(71) · Salvage Yard
Mt Pleasant, MI
Underwood's Snowmobile Salvage
(6) · Museum
EMC Eastern Mi Cycle Salvage
(39) · Motorcycle dealer
I have delt with the Mt Plesant Michigan one. seemed like good people to me.
One bit of advice check with Fastnal
As a antique tractor collector and restorer we use them for a lot of Heavy stuff like wheels.