Will this table accept template guide bushings?

No, the inserts for this table will not accept guide bushings

I do not have guide bushings at this time to verify by trial. The router is a common fixed router type with a 6" base plate and a sub-base (acrylic base) opening of 1-1/4". You could make an acrylic sub-base yourself with larger openings if needed. The largest diameter opening for the table top inserts is 2-1/8". If the guide bushings you are planning on using are smaller than that, they should work.