To start with, the first RC drift cars were regular race TC's. They had a chassis layout purely focused on laptimes, and people added drift tyres and went sideways. But as people got better and better, they found the chassis we use to race weren't good enough to drift with in terms of balance.
For example, compare the layout/balance of the Hot Bodies Cyclone:
to the Cyclone TCD:
So by that token, I don't think any current chassis can be used without huge mods. I'm thinking, make an RC chassis with the same Front motor, Rear Wheel Drive layout as a real car to try and get a real-ish balance, motor under the front shock tower. Use a saddle-pack Lipo somewhere towards the rear of the car, ESC and receiver either side of the main shaft, and servo in the front bumper? Then use a super slow motor to build up the skills of RWD drift before going quicker.
I've just knocked this up on Paint using a HPI Pro 4 but you get the idea: