Hi Bruce,
Welcome to Ferrari Forum, I am originally from Louisville and it's nice to have a fellow Kentuckian on here.
Finding a F355 or 360 will not be hard, but it won't be easy either if you aren't willing to drive a bit. I would suggest contacting Bluegrass Motor Sports which is quite possibly where you got your 911? I personally don't like the dealer at all, but they occasionally had a few Ferraris go through their in the past.
I think the closest dealer (official that is) is in Dublin, OH which is just outside of Columbus, so 3 hours from Louisville, or 1.5 if you live in Convington.
Other options include: Atlanta (lots of Ferraris there) and Chicago (even more).
Hope this helps. Let us know if there is anything else we can answer.