Steve,
In reference to Argentine requirements for obtaining temporary residency as pensioners, I can say that in 2011 its Montreal consulate told my husband that we (Canadian/UK citizens living in Canada) could apply from Canada and that we'd have to prove our regular monthly Canadian pension income, set up an Arg peso bank account and prove that we'd arranged with our Canadian bank a regular monthly bank transfer worth 16,000 pesos per month (for 2 pp) for 3 years. ARCA with whom we were not contracted suggested we offer 22,000 pesos/month to increase our chances of being issued temporary residency as pensioners. We were fine with all that.
That was prior to the first of a spate of financial restrictions begun in Oct/11.There was at that time no blue rate, no 'Xoom' generally being used which has never been available to non-US-located bank accounts anyway, no arbolitos chanting "Cambio" nor massive increases in monthly peso rents of unfurnished rentals due to a 'blue rate'. My husband would retire in June 2012. We'd have our temporary residency by then and have our movers ship all our household goods to BA. We even had help getting a leased unfurnished rental in BA.
In early 2012, we heard that Argentina was about to no longer allow foreigners to apply from outside Arg, that we'd have to apply while we were IN Arg. We couldn't handle uprooting our lives, giving up our home etc wthout knowing in advance of doing those things we'd be issued temporary residency. Also, in Apri/May, 2012, a final financial control of a spate of them was the first one that we couldn't cope with. Three years of retirement planning down the drain followed by an unplanned move to France and a city we'd not been to in 15 years!
Despite being EU citizens with an automatic right to reside here, to actually set in motion the normal needs of life here is fraught with at least as much bureaucracy as obtaining temporary Arg residency or an Arg bank account. More government authorities are involved when you're trying to get permission from just one public or private institution. Each little segment of a process involves 6 stages. Things here are in utter detail so as to be 100% fraud-proof. You'd be an irritable fool here to think that 8 weeks or 26 months wait time for something is slow!
Getting a fully operating bank account here sounds way harder here than in BA. We each signed over 40 pages of a contract, had 4 long meetings with a bank manager, and he had to apply to our local post office branch for it to conduct a 6-week long procedure aimed at its ensuring that we actually lived full-time at the address we said was ours. For 3 of those weeks, one of us had to be home all day long weekdays.