to those who just applied for their wife/husband naturalization can you give me some info or advice as I am applying for one soon (may be Aug. as my hubby still short of cash

as we need atleast about £800 the most) very very expensive
As I reading the requirements: Im a spouse of UK citizen
My husband passport
My passport
My certificate of Life in The UK test
2 referees
* What form should I download as BIA keep on revising forms?
* Do I need to send my marriage contract/birth certificate?
* How about number of absences outside UK? some said that absences is a factor in applying.
Thanks for all the help in advance.
Flo