I have a Lowrance black and white 5" graph(x-135 maybe??) that was on my boat when I bought it. I turned it on and it worked but never fished it because I replaced with a color downscan unit. It was flush mounted in the bow so I do not have the mounting bracket for it but I can't imagine one of those would be hard to find. I was going to keep the transducer as a backup but if you want the graph you can also have the transducer. You can also keep your mask and just consider it appreciation for your service to our country!!
PM if you want it and since I am just north of you we can probably figure out how to get it to you.