R32 Skyline winter build-up

hum the Quaife diff deal is a fiasco- I can have 20 ( min’ order) of them at 1000 pounds Sterling each. apparently no-one has ever actually bought an R32 unit from them!!!
Grrr… so now I’m screwed on having some traction at the track, unless I want order one from Oz’ from a company called ATS.
Why is everything to do with these cars such a saga ?