Well after waiting and waiting it seems Sprocket just isn't adjusting to the new and much bigger housing I set up for him. Being very concerned he wasn't eating at all or accessing his water dish (though he's heavily misted twice daily so he can lick up droplets), I decided to rethink his housing for now.
Ten gallon tank set upright to give him height (pic prior to him being introduced to the new caging arrangement).....
All set up, Sprocket's in there somewhere, misted and locked up....hopefully he'll settle back in and resume his normal eating patterns now that he's back in a smaller enclosure *fingers crossed*.....