The loss of a RR, t-bird and Valk would leave a hole in anyones bag. Those are all proven discs that cover shots that every DG'er needs to throw.
Instead of a RR, you might try a Sidewinder, but the 2 discs are pretty close.
Instead of the t-bird, you might try an S-PD, or a Star SL.
Instead of the Valk, you might try a Beast.
"Hitler and Mussolini were only the primary spokesmen for the attitude of domination and craving for power that are in the heart of almost everyone. Until the source is cleared, there will always be confusion and hate, wars and class antagonisms." - Jiddu Krishnamurti