Posting a Hitachi with Seicos control, Y axis, sub?

[honeybunches]

We have our reseller scrambling around to find a post, and looks like this will not be happening so I wanted to find out from anyone here familiar with Hitachis, are they different enough that we cannot try to mod a different post?  

The machine has a Seicos Liii, and has C, Y, live tool, sub, sub ejector, parts catcher.  I know this is an OLD bird and I have heard horror stories of guys having to splice code from a mill post just to do milling operations!  

I am sure we have a basic Seicos lathe post but that would leave LOTS of things out in that sub.  You have spindle sync, orient on the sub, ejector, etc. that need to be covered.  

 

Do we need to just start looking at 3rd parties for posts?  Or any idea which direction would look better if we modded our own?  Have done this before but I am not a pro at it.  

If I am somehow stepping on toes for asking , please disregard.