ILR Help with absences 5 years T1 (G)

[amonra]

hello All,
I need a bit help with 5 years continuous residence. I read many many posts online and read the rules on the home office page and going crazy. Could you please have a look at my case ?

+First entry to UK on 24APR 2011 with T1 General (same visa since then)
+Went abroad on July2011 just before my employment starts for 11 days holiday,family visit etc..
+First employment starts on AUG2011
+Changed employment once.
+And I have never exceeded 180 days limit in any 12 months
In total I have 240 days outside (personal/business/paid/unpaid) in 5 years

So my questions:
1-I cannot reach my previous employer, they do not reply my emails or don't answer my calls, what happens if I print out my old emails for each trip which shows and approval/confirmation from my previous employer at that time (luckily they are still in my google inbox) and also put my old contract as an evidence ? Will homeoffice be ok?

2-I had 12 days holidays (family visit, holiday) before my first employment starts, would it be a problem ? Would it be considered as a break in the continuity ? I still have the boarding pass stubs, I will also show them as well.

3- It seems as long as not exceeding 180 days they are ok, is that right ?

My ILR appointment by the beginning of MAY.

Would appreciate your answers.

Thanks and regards