Take one to an industrial hardware store, or specialty store like Fastenal.
They should be able to match it up pretty close.
Or do what I did and simple bolt, lock washer, and nut instead. Worked fine and no one will ever be under the car to know.
Look at the link I provided.
There are only two seats available for 2019 and up.
The cloth Recaros, not heated, not cooled, manually adjustable. These also have the integrated holes for over the shoulder racing harnesses.
Then there is the leather seats, heated, cooled, and power...
As @GT_Dave said, a little gas stabilizer helps, and I also add a bottle of dry gas too.
Never had a problem either, it’s only a few months, then once you take the car out you’ll probably use up the tank of gas in a week or so of driving.
I’ve got both, a 2012 Boss 302 Laguna Seca and a 2020 GT350.
Both are tracked, both are so unique in their own ways. When I got the LS new in 2012 I thought it blew away any other mustang I’d owned before.
Then I get the Shelby last year, and holy shit it’s on a whole ‘nother plane... it...