The government website states you must be residing in the UK to get DLA.
For Incapacity Benefit:
I go to live abroad or visit?
Let us know as soon as you can that you are going abroad. You can usually do this by contacting your Jobcentre Plus office or social security office.
If you are going abroad permanently, you may be able to get a benefit for incapacity if you are going to a country within the EEA or one that has a social security agreement with the UK covering incapacity for work.
If your stay abroad is temporary, you can get Incapacity Benefit paid abroad for the first 26 weeks if:
* you have gone abroad only for treatment of an illness or disability which began before you went abroad (pregnancy itself is not counted as an illness), or
* you were incapable of work for at least 6 months before you left the United Kingdom (UK) and have been continuously incapable of work since then.
You may be able to get Incapacity Benefit paid abroad for more than 26 weeks if your stay abroad is temporary and you get Attendance Allowance or Disability Living Allowance.
You may be able to get a benefit for incapacity in a country that has a two-way agreement with the UK. For more information, contact your local Jobcentre Plus or social security office.
You should be able to get your private ill health pension regardless of where you live.