How long has your transfer case actuator lasted?

Hey all, had my 4runner for a while now (03 V8), the time has come to fix my transfer case actuator seal leak. My question is how many of you have replaced the actuator itself while you’re down there? And for those of you who have the original how long has yours lasted? I’ve got 160K miles and worried if I don’t do it now I have to spend double the money on labor another time down the road. Also wondering if anyone has used non OEM actuators and what their experience has been. Been contemplating doing the job myself because the quotes I’ve gotten are just ridiculous. Appreciate any advice!