perhaps it might be a good idea to find a front axle from a recked TJ and just build control arms to match? it won't be as good as custom job, but it will be an easy and probably well working first try. You can also get a TJ bracket kit that comes with all the mounts.

Some of the YJ coil conversion kits use the original spring hangers for the lower control arms, then use a skid plat for the uppers.