Let us know if you are successful finding the clutch basket from TrialsPartsUSA.
I don't know if they are still in business. Jim Snell passed away a few years ago.
Years ago he told me he had a couple shipping containers full of Pampera parts
that he thought he would never be able to sell. As there were only a couple
hundred Pamperas imported into the USA. Most were the 280. and the earlier 320.
Jeff