Dunno, I havent been in Dublin for a while, dont really know anyone in the courier scene to be honest. You might be better off asking on the boards.ie cycling forum - Cycling - someone there might have a fixie knocking around. I imagine (I think I would) they might want some sort of security deposit though... I know you're probably extremely decent & sound but its a big ask of someone to hand over an expensive bike to a stranger... just sayin'.
Dunno, I havent been in Dublin for a while, dont really know anyone in the courier scene to be honest. You might be better off asking on the boards.ie cycling forum - Cycling - someone there might have a fixie knocking around. I imagine (I think I would) they might want some sort of security deposit though... I know you're probably extremely decent & sound but its a big ask of someone to hand over an expensive bike to a stranger... just sayin'.