Might be a revamp of one of these:
The last ones quite interesting as it has both a magazine and autoloader fitted,its clearly the most advanced out of the 3.
It is very surprising that at least one of these systems was not produced in small numbers and put into limited service for evaluation.
You are not getting 60KM range with those without rebuilding the entire system.
The archer system is potent for a reason. Mainly it’s Excalibur GPS guided shell with very long range.
Again depends on how much a shell costs versus a Fajr rocket.
But I bet an Archer can acquire a target and fire on it much faster than artillery rocket can. That is also something to take into consideration.