Fresh install Kubuntu 13.10: how best to partition the HD for optimal, smooth Kontakt & Akonadi

[Bas G. Roufs in English]

Hello Everybody

Today, I have been partitioning my 'HP Pavilion dm 1' via GParted  in the way 
summarised below. This machine is from 2011 and came with Win7, so without 
UEFI issue. In a few days from now, I want to install there my main system 
Kubuntu 13.10 and a secondary OS, Windows 7 - however, according to 
suggestions throughout the internet, I need to install Windows first. 

Soon afterwords, I want to install Kubuntu 12.04 LTS at a third partition: as 
a kind of fall back/ reserve system. In  later stages, I will install OpenSuse 
13.1 and Kubuntu 14.04 RC: also as secondary systems.  

But before proceeding, I want to check a few details. That's why, I summarise 
the way I have partitioned my HP. 

=============================================================
Multi boot partitions (Via -amongst others-  GParted at System Rescue CD.
=============================================================

==============================================
Partition - File System - Label - 
Size GB/GiB 
==============================================

sda1, primary partition - ext4 - Bootloader - 
1 GB/ 0.93 GiB 

sda2, primary partition - ntfs - Win7 - 
30GB/27.9 GiB

sda3, primary partition - ext4 - Kubuntu13.10 - 
30GB/27.9 GiB.

sda4 - extended partition.

sda5, logical partition - linux swap - swap - 
4GB/ 3,7 GiB

sda6, logical partition - ext4 - Kubuntu12.04 - 
30GB/27.9 GiB

sda7 - ext4 - OpenSuse13.1 - 
30GB/27.9 GiB.

sda8 - ext4 - Data - 
375,1 GB/ 349,34 GiB.


====================

A few questions are left.

Is the above partition table OK?

So far, I did not yet put any 'flag' onto any partition.  Do I need to put: 
+ a 'boot' flag at the Windows/NTFS partition sda2?
+ a 'lba' or 'lvm' flag at sda4? 
+ any other 'flag' somewhere?

So far, I do not manage to mount from GParted after setting up this partition 
table. How can I mount sda2, sda3 and sda8? Do I need to mount:
+ AFTER installing Windows 7?
+ DURING or after the installation of Kubuntu 13.10?

For mounting, do I need to use the partitioner of Kubuntu during the 
installation? Or is it better to go back to GParted at the 'SystemRescueCD' at 
some moment? 

However it may be, I would appreciate a bit of feedback.

Respectfully yours,

Bas.