yes since you have everything, nothing to buy
simply choose your NAA output as normal
then go select miniDSP input as per normal
It will just work, like magic
Note this will only play the CD part of your SACDs. You cannot output DSD over the optical output . Better to rip the DSD and store in Roon library
Out of interest, do you prefer spinning physical disc to storing the CD rip in Roon?