Hi there, you really should apply for FLR as soon as possible after your marriage.

Personally, I would say if you can manage the budger of additional cost of personal application at the enquiry it's well worth it as it does save a lot of waiting time under stress, as you will be given the FLR decision on the same day.
Please only do this this if you are very sure that your application is straightforward and there are no additional checks and verifications that may need to be done by the 'back-office' caseworkers.

The FLR(M) application form is here:-
http://www.ukba.homeoffice.gov.uk/si...lrm1020091.pdf

The FLR guidance notes here:-
http://www.ind.homeoffice.gov.uk/sit...lrm1020091.pdf

Look to section 11 (Documents) to review what needs to be supplied.

To be really honest it's basically a formality, and you really should have no problems at all.

If you do have any questions about the requirements just fire away.

In the meantime I wish you very best of good luck.