Just thought I'd share my experience with anyone planning to apply - it'll help you calm your nerves. My case was straightforward - 5 years on a Work Permit (Oct 2005 to 2010) with the usual leaves for holidays etc. during that period. Staff at PEO Croydon were fine, no unnecessary questions or scru...
The Home Office rules say that nationality or country of residence do not matter as long as there is evidence of the person's identity. So yes, you can send an SAR even from abroad.
Sorry I'm adding to your question - but I was wondering what kind of information I can ask for through an SAR. I'm also planning to file my ILR application soon and I'm worried about the entry/exit dates and employment dates on record (I've changed jobs a couple of times). WIll I be able to get this...