Oh dear Ben! that's a bit of a after all the effort, work & time you have spent on it last month.
First thing I would do is give Steve at SCTelescopes a phone call (+44 7934 063893) or send him an email before attempting a DIY repair.
If you can manage to push baffle back on, then you maybe able to let a thin cyanacrolite adhesive do what is called 'capillary action', (i.e. a drip of the adhesive follows the join). I do this to join to halves of a model aircraft wing together if they become damaged. Loctite used to do an adhesive specifically for repairing glass, though I don't know whether SuperGlue will do.