Edit: missed a bit of the post.
If the RYTM is too much of an investment , consider the Korg Elctribes mark 2 out I December and the sampler version in 2015.
These things have almost no learning curve, but the new versions do not have a song mode.
However they will bounce the audio inside the machine for export, and if you have Ableton you can bounce as a project folder.
You won’t get the analogue goodness, but having tried a King Korg, the synth versions engine and filters are taken from this, I can say the DSP sounds superb.