What about buying a Canadian 1320 there is a single seat 45 min from where I live. Plus with how low the Canadian dollar is right now compared to the U.S. dollar you would get a real good deal. It only has 13 kms and has the wing you wanted but it is destroyer grey. Also it is probably the only Canadian 1320 single seat ever built. At today's conversion your looking at $38433USD plus tax and importing fees. It may be worth it for you?
-Edit just looked it up it is the only destroyer grey Canadian scat pack 1320 produced and 1 of 28 total Canadian 1320s
This 2019 DODGE CHALLENGER offers all the standard equipment of R/T SCAT PACK plus: OPTIONAL EQUIPMENT (May Replace Standard Equipment): Customer Preferred Package 24G; 3.09 rear axle ratio; 1320 DRAG PACK with Performance cloth seats with Houndstooth inserts, Delete Rear Seat Group, Delete passenger seat, Delete rear seat, Delete rear seat belt, Delete front passenger seat belt, Cargo net, Front floor mat, Driver floor mat, Drag Mode Performance Pages, Dodge Performance Pages, Drag Pack, illuminated Air Catcher headlamp, Drag Pack fender badge, Drag Pack instrument panel badge, Speedl-imited engine controller, Alcantara-wrapped performance steering wheel, Drag mode suspension, Adaptive damping suspension, 275/40R20 102W Drag Radial tires, 20x9.5inch Low-Gloss Black aluminum drag wheels, 1-year NMCA/NHRA membership, 8-speed TorqueFlite automatic transmission, Leather-wrapped shift knob, Auto/Stick automatic transmission, Remote start system with automatic transmission, Tip start, Steering wheel-mounted shift control; SRT Barracuda spoiler; Uconnect 4C NAV with 8.4inch display pacakge with GPS navigation, Media hub w/ 2 USB ports and auxiliary input jack, SiriusXM Travel Link, SiriusXM Traffic, 5year SiriusXM Travel Link subscription, Red brake calipers; $53,988 13 KMs
https://www.uniquechrysler.com/vehi...enger/burlington/on/45527916/?sale_class=used