That hull is 20 4" vs 19 6" and already has a 25" transom, the boxes in the aft are taller vs lower on potter and the console is taller as well. A 86 might not need much work, an older Potter if it wasn't redone by someone may need some work. My advice is whichever you choose buy one that's ready to use its more fun than rebuilding one, I just had a 20 redone and sold it for a 21..
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