I don't think any Tobias basses are being made, atm. It took Gibson a while to drive the last nail into the Tobias coffin, but the Toby series finally did it. So if you want new, no luck there.
I know there are some beautiful Carvins out there, but a good Tobias is unbeatable. If it were me, I'd hold out for a Killer B, or any other USA made Tobias over a Carvin, even though I've read about some crappy ones that were produced at the Gibson/Nashville factory. Therefore, (always) try before you buy.