From your photo, it appears you have a triple pass radiator which Dennis is no longer selling. as such one hose goes to the RH bottom and the other hose goes to the LH top.
therefore, it may be doubtful that newer fans could be a direct bolt in replacement
the fan sequencing is not dependent on the fans , just dependent on the wiring, which there is no need for you to change with fan replacement
You’re easiest solution may be to pull the radiator and fans to determine exactly what fans you have and then try to locate exact matches for replacement
Larry