Check out the Chattanooga Choo Choo as a potential place to stay. It once was a Hilton, then a Holiday Inn––but appears to be an independent
business now....and has a variety of room prices.
http://www.choochoo.com/
If they fit your budget, consider getting one of the train cars. They're old passenger cars, with the seats removed, a partition installed in the
middle, & transformed into a Victorian bedroom, one in each end of the car. Pretty neat room. Even if you don't stay there, it's worth a visit.
The best clustering of restaurants is around Hamilton Place Mall, which is on I-75, around the Shallowford Rd exit (Exit #7, I think...but could be
wrong about that).
The Pickle Barrel is a neat sandwich shop downtown, on Main, IIRC.
Pisa Pizza (excellent pizza) is across the river from the Aquarium, near Coolidge Park––there's a neat antique carousel in that park. Beware, though: the
local parks are off-limits for carry (for us normal people who have a carry permit and are law-abiding, that is...for those who are not, then
then the laws obviously aren't meant to apply to them!)
Visit Lookout Mountain––particularly Point Park (Civil War––and carry is legal there, because it's a National Park), and consider riding the Incline Railway.
If you're into trains, the Tennessee Valley Railroad Museum is one of the largest train museums in the South. It's off Shallowford Rd, too.
Welcome to Tennessee!
David