yes is a good pen plotter, I can reccomend it

about realtime drawing I believe is hard to do it..( I do not have any info or knowledge in order to obrain this result)

Ate the moment I'm using Touch Designer as software to erlaborate MIDI signals from an Arturia MK 3
The software can map the MIDI controls and after you can create your own project ( I0m still learning TD to obtain somethin.. perhaps an SVG )

The VCMC by Befaco can be my solution, it is expansive !

I will keep to study in that way-
Hope to achieve some good result soon..