Hello Brad, welcome,
I don’t think your dream has completely come true yet, but work is being done to make it happen.
The idea itself is intriguing and worth investigating, but I myself am also not sure of the effect acetone would have on printheads. The good news, the C6602A is made of fiber reinforced nylon (for some dark and mysterious reason) so it should be resistant to acetone. The nozzles themselves are a bigger mystery, since there is a lot of very fine technology in that area.
It should also be possible to 3D print in ABS powder with a less agressive binder, and then use the acetone vapor technique to cure the part. This way acetone does not have to go through the printhead and you will still have a ABS printer with no support (and shrink). The part will be a bit weaker though.