Multi monitor setup problem

Hello,
my name is Philipp and I am new here...
I'm building a low-budget A320 homecockpit and now its time to think about how to arrange the displays. I need 3 displays, one for PFD/ND one for ECAM and one for the viewing. the first two screens I have already mounted in my cockpit so they are not replaceable.
And here is my problem:

How can i use 3 monitors for my cockpit?

I now that there is eyefinity but i have two vga monitors and one dvi (the view), but thats not possible since alle graphic cards i found have hdmi, dvi and displayport. this are 2 digital connectors and that doesn't work therefore. A hdmi-vga converter costs quite a lot of money (40€).

A second graphic card didn't work either, the computer didn't recognize the second card, only one was working.


Do you know other cheap possibilites to make 3 monitors possible?

thank you in advance
philipp

vga-dvi adaptors are not that expensive. You might need a dvi-DisplayPort adaptor, depending on which GPU you choose. In my case I run 5 monitors out from a single GPU ( HD 6990) with four DVI-miniDP adaptors and a single DVI connector.