Maybe try to find a core vnt 15 and pull the actuator off that. Of course it will not have the "smart" sensor on top of the can. Or you could try to open the can and replace the diaphragm, which I assume is what is leaking. Unfortunately they don't sell that actuator separately.
2006 Jetta TDI - Malone Tuning stage 4, G60/VR6, Vogtland 55mm/Koni Sports, GTB1749V, EGR delete, Titan/Frank's cam