Tom.
It would be best to fix the problem leak and stop the water coming in first, then, the best solution to get rid of any condensation water is simply a bucket and a big sponge.
(The best bilge pump ever was a frightened crew member with a bucket)
I have RL434 which is a drop keel made in about 1982.
When sailing in heavy weather, its normal for water to squirt up the keel case and land on the floor. When planing which is often 8 to 12 knots, water also sqirts up the keel case. Most times wejust sponge it up and the floor is a bit cleaner. On longer passages the crew does a bit of baling to keep the flooding under control.
A bit of water in the bilge is no big deal, remember the yacht has lots of flotation chambers so the worst that would happen is being swamped and a bilge pump won't do much once the yacht is swamped.
