I am currently using a Lowrance Mark-4 HDI with an 83/200 transducer. Unit works great for what I need it for but would like to upgrade my transducer to 83/200 455/800 to unlock the down scan imaging features of the unit. Wanting to buy one used and not having any luck. Anyone on the forum with an extra they would like to part with? I can send money via paypal.

Thanks!
Matt