Sounds like a horrible deal...
I can almost guarantee you’ll regret this purchase not only in a month or two time when all the new MacBook/Windows laptops release, but also when you start having keyboard issues.
It baffles me how people can still buy these keyboards - not only did Apple create a repair programme for it, there is a patent with the membrane design used on the 201& models with the patent detailing its purpose of stopping things getting stuck in the keyboard (they knew this since 2016 at the very latest going by the patent date).
Don’t believe the misleading “it only affects a few”, it’s a design issue not a QC issue...