Front wheel speed sensor retrofit ideas?

If you didn't already have the rear solved, a swap to an 8.8 might offer an option. Or a cut down 9.25 out of a van or truck if you wanted to keep it Mopar. The 8.8 (I think) has tone rings on the axles, but the 9.25 has one one the carrier so it isn't any different than using a pickup in the trans.

Just ideas.