My old school hope M4s for Post mount M4s

[Madmax1993]

I have a retro pair of No3 caliper M4 brakes, with a right hand mono lever and an original left hand lever. The No3 caliper is IS 180 (183mm?) Front, 160(?)mm rear. All 8 pads have been recently replaced.
I'm looking for a more modern pair of hope Tech M4s with post mount calipers. Happy to pay the difference in value.