[Kriggerel]

Don’t they need the red heifer first?

[Ciaphas Cain]

They also need the ashes of the previous temple altar's sacrifices, if I'm not mistaken.

Regardless of that detail, there have been some cattle ranches in the past few decades which have specifically been trying to breed red heifers, and there have been a number of successes which would be fully qualified for a proper levitical dedication of a new temple.

[xp38]

The dome of the rock might be another speed bump in the way.