alfa see ya slide out retro fit kit

I posted a few days ago about the slide out motor in my friends 2005 Afa see ya M/H. I hve since found out that there is or was a kit that would move the motor to make it a center of the slide location instead of the end. where it now is. Anyone know where to get this kit or how hard it is to install.
Thanks for any help
Busyguy