Must admit Eliza , that it had,nt occurred to me that Jesus would need to requisition new clothes after conquering death. Certainly a God who validates the sacrifice of his Son by raising him from death is unlikely to be thwarted by what he will wear , but of course I don't know either where the new apparel came from. We are told that in creation he only had to speak and it was created, so I guess a new suit is small fry in comparison. As to not being recognised post resurrection we are told in one place that they were prevented from recognition till he broke bread.   And of course they were not expecting to see him , especially well and whole.