Help!! I need some 901/904/911/914 gearsets in fine shape for track use in my 2 liter cars:

"B" 1st (14:37); PPN#901.302.907.10
"E" 2nd (17:34) PPN#904.302.909.10
"F" 2nd (18:34) PPN#904.302.910.10
"K" 3rd (21:30) PPN#904.302.915.10
"R" 5th (25:27) PPN#901.302.911.10
"T" 5th (26:26) PPN#901.302.912.10

Any leads greatly appreciated!

Jon