I'm surprised you found one that doesn't have separate park bulb.
I When you say QH, you mean you want a headlight with separate plug-in H4 halogen bulb. Just want to be sure we are on the same page.
They are pretty easy to find.
I would recommend finding a curved face QH unit. The curved face looks much better in my opinion on Cobras.
This will give you an idea of what to look for: (Have a look at the extra images tab for the rear photo)
http://www.snakebite.com.au/7halogen...ach-p-151.html
I'll see if I can post some instructions/photos on assembly.