I have no idea where you came with a 195/65/14 size ... 24.0" diameter. That's WAAAAAAY OFF!

Stock 185R14 diameter is 25.6".

205/70/14 is 25.3". I fail to see how that would be too tall.
195/75/14 is the most popular option - 25.5".
195/70/14 is 24.8" ... on the small side already, but a decent compromise for a slightly lower profile.

Plus one ... 205/60/15 is 24.7". Proper plus-one sizing for wagons is a 205/65/15 - 25.5".

And why for you say modifying the suspension to go to 15"? No such is required. It wasn't at the factory when they were new, and there's still no such requirement today.

As for too much body roll, bounce, and acceleration with 205/75/14 ... it's not the tire's size fault (26.0"). That's more a suspension and other mechanicals fault. The tall sidewall would yield a very compliant ride, and would squirm in the corners, but not as much as the stock suspension (and tiny sway bars) setup creates. Once that's addressed (turbo bars on a budget, iPd bars for the best results), then you can say it is the tire's fault.

-- Kane
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Blossom II - '91 745Ti/M46 ... Bubbles - '74 144GL/BW35 ... Buttercup - '86 245GL/AW70 ... The Wayback Machine - '64 P220/M40