H22 in a civic works just fine for a daily driver. the header hangs a little low but just drive a little more carefully and dont skimp on beefing up your suspension and getting custom axles.
its not a wonderful autoXer, but it can hold its own on the drag course and the roadrace course as long as you spend the money to do things right.
but as i said, its not bad for a daily driver. and installation usually runs in the range of $1000 as where a b series swap is about $500.
and you can keep AC.
www.jdmshit.com sells all that you need.