They've actually been mentioned a couple times by another Ride1UP customer, who used them, and he had also stated that R1U recommended them, so it sounds like safe bet. Maybe about $50 for inspection, $100 for assembly.
Almost ordered a Core5 for my son for Christmas ( I have a 700 series) but went with the espin sport because for the same price it comes with hydraulic brakes, more battery, fenders and a rack and a front suspension fork