ILR or FLR again - Tier 1 (General)

[cgp]

Dear friends,

I have few clarifications to be made regarding my ILR which is due on 23Jul2013. I booked my PEO appointment already at Croydon on 10Jul2013. Please find the complete details of my case and kindly advice if I'm fine or need to go one more extension. I apologies for some of my repetitive questions.

Current visa and Work experience in UK
Currently in FLR - valid till 23Jul2013
Nov2008 to Jun 2012 - Full time (permanent) employee in IT
Aug 2012 to present - Full time (permanent) employee in IT

Late entry
Tier 1 (general) - valid from 23Jul2008
Date entered UK - 16Sep2008
Question 1: There is a gap of 55 days on my arrival to UK. Would this have any impact on my ILR?

Leaves (out of country)
Question 2: In my whole 5 years in UK, I was out (all paid and annual leaves) for 128 days in total to India on holidays. Would this have any impact on my ILR?
Question 3: Do I still need to provide supporting document from the employers, even if it is less than 180 days?
Question 4: If so, can I show my e-tickets to support, instead the employers letter?

Payslips
Question 5: I could provide only 11 consecutive month payslips this time, since my 12th month payslip is due only on 30Jul2013, which is past my PEO and visa validity. But I'm already satisfying my points (earnings in UK) with 11 months salary. Is it a must to show all 12 months in last 15 months period?

Bank statements
Question 6: Can I submit current 1 year statements or should I do for 5 years?

P60
Question 7: Is it okay to submit the current p60 form, or need to provide all 5 years p60?

What I have
I have the following documents to support my case
- Employer letter (current - would be getting in couple of days)
- Payslips
- Bank statement (Will be updating till 10Jul2013)
- P60
- e-Tickets (for paid annual holidays)
- Life in UK (will be taking next week)
Question 8: Is there anything I'm honestly missing?

Appreciate your time and advice.

Many thanks