Double Bow mount on 2013 P4.

Looking for ideas or suggestions on how to do this. If you’re familiar with the P4 bow layout (maybe other models of that age were similar?) you know there isn’t much room in front of the trolling motor pedal. Most available room lies to the right of the pedal in that little well.
Currentky I have a Ballzout mount for my 12” Garmin. I’d like to add my 9” Lowrance Carbon back to the front for mapping. I have emailed Ballzout and the guy said I can buy a retrofit part to add the 2nd. I’d prefer to stack them on top of each other but that may not be possible. I may have to just flare the 9” out to the right.
Anyone familiar that can offer any info? Thanks

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