Thank you Norman. Turns out I think I can fit both systems in one room. I agree with you, I'd never give up the Sansui. I fell in love with the brand in 1975 and nothing sounds like it. I had a tech who was a Viet Nam vet and he used to call Sansui, "The Japanese Mcintosh". Perfect match to the Polk SDA's. The Mac and Nolas sound amazing so in my mind two great systems for different types of music.
Thanks everyone and cheers!