6400R 3.0 100 in robot studio simulation

The company I work for has 20+ S4C+ controlled robots, 4400, 6400R, 6600, ect... I am working on some reach simulations and The long arm 6400R is not supported any longer. Does anyone know a way to make it move as it should after assigning a TCP? I tried using the 6400R model and creating a VC with the movement of a 6700, but it isn't even close. The oldest version of robotstudio I could find to download was the 2019 version, does anyone have a robotstudio 6.03 zip file?