I wrote that I think that it's a good idea to buy a property that will be available to OP, that is, it's my personal opinion, I don't need to "have evidence" to prove an opinion, do I?
As to the advice to "go ahead and buy" if OP can secure a mortgage now, I was being a bit ironic, considering the fact that he seems to be ignoring the fact that it's extremely difficult or impossible to get a mortgage while he is abroad!
Really what he needs to do is find out IF he can buy now (i.e. IF he can get a mortgage), then take it from there, hence my advice to go find a mortgage firstIt's pointless wondering about to buy or not to buy if he just can't buy (at least not for a while, until he saves enough to buy outright).
The fact
is really not importantthat it's extremely difficult or impossible to get a mortgage while he is abroad!
Even if he could secure a mortgage in those conditions now; he still would be crazy to buy in his circumstances.