Plan (a) Ring dealer or go online to find a make and model parts catalogue, locate part number, search online, locate, and buy,
Plan (b)Or simply head to dealer.
Plan (c) Parts dismantler,breaker,wrecker for 2nd hand plugs
Plan (d) But if you can wait weeks , keep an eye out here for a possible eventual resolution
Plan (e) Butcher it back onto chassis with a HD self driving screw and drill driver.