Agreed that the 17t would be a poor choice for rivers and likely ponds, too.
And, it is simply too much kayak if you solo most of the time, a waste of unused capacities including space.
I'd buy the PA12 or PA14, then use the extra $2,000, with some left over, for a 16' Meyers Sportspal canoe and use that vessel any time you take out a spouse or friend or head to a river or shallow pond. The S16 is only around 69 pounds so it would be lighter than even your PA 12 or 14 so you could solo in it. Stability-wise, I don't think any kayak even remotely compares including the 17t. You could stand up in it for fly fishing, do a tap dance, just about anything.