Apologies if this had been posted elsewhere and I've missed it.

Rewards for the Exclusive F12tdf series are as follows:

25%: $10k, 10GC
50%: $20k, 20GC
75%: $30k, 30GC
100%: $40k, 40GC

I ended up fully upgrading for the F12 challenge (PR66.1) so will be glad to get a few sheckels back...