Hi Rev
Nessicity is the mother of invention. I wonder if you used the nears in your ht system if you could not simplify a little. If your ht system has front channel outputs or even stereo from your cable box run into the aux of your stereo would let them play as front speakers, though balancing the ht side may be a little difficult.
That being said, I respect anyone that will go to the lengths you have to have both surround and stereo.
Good luck with the new pad, are you moving soon?