Using speed PID controlled mecanum with Holonomic Drive.vi

[GuyM142]

I'm trying to program mecanum drive with speed PID for each motor.
I want to do this in order to set the rotation speed of each wheel rather than setting power (-1 to 1).

I've noticed that it can be easily programmed using Talon SRX CAN,
but unfortunately our team will not get them soon and because they are out of stock we fear that we won't be able to get 8 of them for both competition and training robots.

So, I need help with programming mecanum drive with PID speed control because I don't know how to integrate this into the excellent Holonomic drive which I wish to keep using.

Thanks.