I wondering if it's even possible to convert this transmission from push to pull?
It doesn't have the mounting holes for the slave cylinder on it for a pull setup.
https://www.pmpautogroup.com/product-p/ty754vw7aa.htm

Totally different so I'd say no. Why not use that transmission and just cut a hole in the trunk then make an access cover for it. It will come in handy when you bleed the clutch line.