Virtuemart 3 PDF invoice issues

[Frans D]

VM version: 3.0.6.2
Joomla version: 3.4.0.

First issue;
I want to strip a lot of info from the invoice pdf and have a hard time finding out were everything is called from.
By changing language strings and placing the used php file name within several php files I found out the following;



As you can see, through this I have been able to strip some info out of the pdf.
However I still haven't found which file is called for the address fields (with the purple linings).
Does anybody know, which file is called for, regarding these fields?

Second issue;
The 21% VAT is shown for each product in the summary underneath instead of adding them together (part at the question marks).
I have only one VAT rule, so I don't understand why it is shown seperately.
How can I solve this? 

Third issue:
I would like to have my Euro signs before the prices instead of behind them.

Last issue:
Not all of the language overrides, function within the pdf invoice, or html emails.
For example: I made an override to change "Verzend naar" to "Verzendadres".
On webpages this functions, however in the pdf invoice and html emails it is still showing "Verzend naar".   

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