I think it will be Vukovic but it does seem like a strange signing.
Not if Paston is out for a few weeks. Would be a short term signing until he found another club I'd say
When I say strange I don't mean for us, having two starting quality keepers isn't a bad thing at all but it would seem strange that he would want to come somewhere that he will probably not start (unless he is just desperate)
At this time of year most clubs in the world aren't looking for a starting 'keeper, and he's been quoted as saying that he hasn't had any income for a while and just wants to find a club for this season.