need Mesa board recommendation

I am building a new mill.

I need 4 axis brushless servo motors. I have 8i20 brushless servo driver that I have tested and think I can get it to work without the hall signals, ( might want to add the hall commutation signals in the future)

MPG
4-home switches
spindle control and rigid tapping
remote e-stop
remote feed rate over ride potentiometer.

I have 5i25 and 7i85 daughter card now, and I have one servo motor pretty close to working.

I have come to find out that I need an additional card for the general purpose IO.

I am not opposed to abandoning what I have now and going a different route.

Maybe a combination of cards that works in the pncconf set up wizard would be better for me.

Maybe a 7i74 + 7i73.
I am using a 7i73 in a panel with good success.