Help with my focuser!!!

Hi
I have a Meade 12.5" dob and obviously I need to replacement the focuser. The question is: ¿Which focuser I can use if I don't want to change the hole position or the secundary. Orion? Scopetronix? JMI? Sky-Watcher? Antares??.
Please somebody help me
Thanks

What you want to do is measure the distance from the tube to your eyepieces (where they fit into the focuser) and choose a new focuser that allows that same freedom to focus. The height of the new focuser body, plus about half of it's focus travel, should be about equal to your present measurement. Ron