Dunno, I had my Dunlavy speakers for about 20 years and decided on something new, bought OB Spatial Audio M3 (used) then down the road upgraded the crossovers with new caps/resistors. One thing to consider is how difficult it might be to sell your beloved speakers, since shipping would be difficult.
Upgrading the crossovers on the M3TS speakers for me made a huge difference. You might want to try just replacing the resistors with Path resistors first, which is a relatively cheap upgrade. If you like what you hear, continue on. Good luck!