Didn't the Ibiza gti have the abf lump? Basically a polo iirc. Should be doable.
Polo hatch is harder...engine mounts etc don't work too well.
Polo saloon/estate/Ibiza/Cordoba and the ABF drops straight in.
We were discussing it because the thought of a Polo estate CL packing a 160+ BHP ABF is pretty appealing...and since nobody wants Polo estates...pretty cheap too!