hey flip...I just looked out of curiosity on E-Bay and there was a couple of OMC trollers on there....mostly 12V but one was 50lb foot control that looked new and he claimed it had only been used a couple of years 97` model...might check it out under EBAY Motors,,, "trolling motors"...I bet if you check out some of the shops that in back somewhere there are enough pieces around to put a good unit together....if you can`t find a whole one ....they made bunch of them over the years and from what I`ve learned by having one for 25 years....most of the parts interchange regardless of model...foot control,hand control , 12v ,24v the basic pieces are the same...I believe mine is just a 54lb so the one Ebay may be just right for your G3.....I`ll look around the shops up here as I get around and see if they have anything....
oh yeah I aquired a nice "parts" one from x-roads basser a few months back...he was cleaning out garage..
I like the MG digital features a buddy`s boat had on it ,but he had to send it back to factory twice in a year when the computer went wacky....he got quick service though...turned around in about a week.