Why do you call that an upgrade? I would term it as a sideways step ----
An inexpensive set of strobes combined with a ( multi manufacturer ) set of pocket wizard triggers will do the same job. Even cheaper if you go with the emerging good quality Chinese knock offs.
Buy once, buy correctly, if you after top quality work from heads that freeze action, forget the cheapie Elinchrom / Bowens stuff and start looking at short duration flash units from the regarded makers.
Totally rhetorical.