Evidence for proof of living and proof of freedom from immigration with no BRP

[bchaip]

Hi,
I haven't seen anyone with my situation and just paid for my application, where I now have to submit my documents and I'm not sure what to do.
I currently have a Thai passport, I was adopted by a BC and was given ILR and came to UK in 1992 at the age of 11 years old. I don't have the original passport from that year with the ILR visa stamp but I do from 2003 in 3 passports prior and have been using that stamp since (endorsed from each passport) to travel and for proof of eligibility to work and live here.

As I had planned to apply for citizenship, I was told I didn't need to apply for BRP, with the ILR stamp in my passport.
What would I require to use as proof of living and proof of freedom from immigration time restriction in this case. I have been living here almost 27 years.

Thank you for your help in advance.

[CR001]

Your passport with ILR stamp is all you need for proof of free from immigration control. You don't need to apply for a biometric card first.

Your residence, your passports and any official documents, like P60s, you have to prove you live here and have not left the UK for 2 years or more.