I payed £600 for an XTP in good condition with CK headset, Onza forks, Pazzaz carbon bars, Onza stem, Onza front wheel, Louise front disc, Tensile cranks, CK rear hub on Onza rim, Maggie with braided hosing, Creepy Crawlers front & back and Try-All foam grips. It was 5th hand, but it was still in good condition, so yeah I'd say £500-600?