Gday Avron
No real need for caution, it wont break
All i suggest is when you have figured out how to load the DSLR to your scope, just get it tracking and watch for drift in the alt axis.
Also, you could look at a cheap webcam like the Meade LPI as an entry level camera. They are pretty cheap now, and all the software to run them is free. They allow longer exposures and shoot through the scope, so give you much more options to keep the kids interested.
Andrew