I found a Euro-R manifold for an H22 for $285 at "icbmotorsport.com", and "inlinefour.com" has 'em for $350, and I found a write up on what modifications are needed to make it work with the H22 head. It's not really that difficult from what I've read... (but I haven't done it myself, so...)
"...Some of the coolant lines to the IAC are deleted...plugging the port on the front of the IM...lengthen the wires for the IAC...use a thin piece of aluminum to "adapt" the IAC valve..."
I'll send you the whole write up if you want. Hope this helps.