TT with integral generator for AC

Generators on standard bumper pull TT's just don't exist unless they've been custom installed or an after market install. I don't know of any that comes equipped with any kind of generator. Unless, something is just recently being manufactured I know nothing about.

Toy Haulers, on the other hand, are a different story though. Generators on bumper pull Toy Haulers are common. The problem with Toy Haulers though, it's not as common for them to have slide outs like a Travel Trailer does. Some Toy Haulers do have slides, but usually just one, unlike a TT that could have as many as 4.

I think Artic Fox you can order a generator on some TT models. Custom build units you can order with a generator as well. New Horizon, Spacecraft, Continental.

As above poster said many TH have built in generators as well.

Yes.
Common on toy hauler type trailers.