Even if you can adapt them quite easily ,they are very small and the flanges are quite simple to do, you will not have an adapted turbo from a 1.9 l engine.
they spool very soon but the turbine and compressor sides are tiny and built to be very responsive only.
they are "out of breath" quite soon wich is not the case of a d24.
1.9 run on torque that's why they have a 6 speed gearbox
the d24 is a 2.4 liters that's mean 500 cc bigger and as a 6 cyl (i mean strucuraly) has normally not a big torque on the low rpm.
vgt is a very good idea but a bigger turbo is needed imo like one from a v6 tdi for ex