Hi Arne,
I have a similar requirement; I want to program a MAX II via JTAG using an FT232H in MPSSE mode.
I was going to look at writing a programmer using the FTDI DLLs. I hadn't really thought about using OpenOCD, but that would save me some programming and would confirm that its possible.
What is your experience with OpenOCD; are you using it under Linux or Windows?
Based on your feedback, I'll install OpenOCD in a VirtualBox VM and use an FT232H cable (C232HM) to program a MAX II PCI kit. If that works, then your MAX V design will work fine too.
Cheers,
Dave