Hi
It was a quite an extensive list of questions, I do not think that anyone int the forum will have the time to answer them all.
But I can give my main thoughts about it.
First of all I would reccomend you to read the readme and the Intallation manual of Performance Center. A lot of the questions are answered there. Also you need to setup a test/proof of concept environment and do all installations there first. You will need at least 1 ALM server, 1 PC Server, 2 PC hosts (controller+LG) and 1 Database server. Here you also need to do the configuring needed, like https/ ldap-connections/backup/firewalls ...
Also notice PC 12.53 requires a ALM12.53 installation. My reccomendation is to keep our existing ALM and have a separate for Performance Center. In this way you will not be dependent if anyone wants to upgrade. PC/LR users are more eager than ALM users. The only thing it will cost is one additional server.
Q4 Read the inastallation manual, but in short
* install ALM12.53
* Install performance center server
* Install the performance center hosts
* install client sw, Vugen and Analysis
Q6. From version 12.5x Sql server 2008 is not supported anymore. Will need at least SQL server 2012.
Q7. You will have to have an active support agreement with HP (SAID). Then all (HP)software will be able to download from the support-site.
Q8/Q9. Yes, Performance Center will need another license than LoadRunner. The free 50 vUsers from community edition will be provided in the installation.
Q10. This depends/needs to be checked in the test/POC environment. Simple scripts like Web/HTTP-Html usually works without converting. TruClient WILL need conversion
Q13. IE 9 is not supported and will need to be updated.
Q15. The installationfiles for Analysis and Vugen can be added to the server and then be downloade from there.
Link to the PC-documentation online
http://alm-help.saas.hpe.com/en/12.53/online_help/Content/What_New/wn_pc_latest.htm
br /ola