What about printing in PET, or NGEN? Would that be an option? They should give better layer bonding, and will probably give a stronger model than ABS? Or just plain PLA if it does not have to withstand temperatures above 45°C?
If tearing and cutting off the supports is too difficult, maybe you could drill them away? If you have a Dremel-style hand drill that can go slower than a Dremel, so it doesn't melt the plastic. Rounded bits as shown below, used in dental labs, work very well (their shaft is usually 2.7mm). You could even use a big drilling machine, if you clamp it to a table, and move the model around.
This short Youtube-video about making a dental retainer shows the idea and tool options quite well: https://www.youtube.com/watch?v=APRw1wgvwy8
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Brulti 177
I have a UM3E so I'm not too sure if the settings are exactly the same on an UM2+ or not. However, I can tell you from experience that removing ABS support is hard and a lot of work, especially is you use the Support Roof feature to have a nice flat bottom surface on your print.
The last time I did an ABS print was for a mobile phone support for a car, and, once I gotten most of the support out by cutting and such, my associate had to resort to sanding to get the rest of it out and get to the actual part. Hours of sanding, and it was a small object.
For the rest, I'll let people who have experience with an UM2+ help you.
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