More questions about wheels

[faffi]

Thanks to mossrider, I know that the wheels will interchange between the FZ07 and FZ09, provided you have the correct spacers for the front wheel https://fz07.org/post/119758
 
Now, I have ABS on my bike, and there does appear to be a difference between the wheels in order to retain the speed sensor ring for the ABS. So what will happen if I mount a non-ABS wheel to my bike? Will I get error messages, or will just the ABS not work?
 
Also, what would you consider to be a good price for a complete wheel with brake disc(s)? I do not care about finish as long as the wheel is straight.