OK so I know most people on here might hate me for this, but we ended up using Honda parts that fit perfectly........ just happened to have some around from my race car and so we tried them and they fit perfectly. Unfortunately because we weren't using the factory intake manifold the factory coils wouldn't fit properly either.

I drew up some mounting plates for them and bolted them in place and I think they look great. Can still use the factory clips for the wiring too.

Just in case anyone else wants to know they're off a J32A2 Honda engine.