T&T: Depth Finder Options

[Flatsflyer@aol.com]

I have a Standard Communications DS100 in the salon with a DP100 Repeater on 
the flybridge. Neither is working correctly, bottom was painted about a month 
ago, gauges did work after bottom job so I don't think it was the transducer 
getting painted in error.

My question is what can I replace these finders with that will allow me to 
use the same transducer, I heading to Keys in May and want to make sure I have 
accurate and consistently working depth gauges for the trip. 

Does anyone know of any place that may have a couple of old one's on a shelf 
in the warehouse or even some place that might be able to look to see if mine 
can be repaired.

Thanks