Frankenstein Amp to be "born"

It has been one year today since I last posted. Since then some caps on the Carmen Ghia have started leaking and producing awful noise. That project will be this summer. Now I am designing a "new" amp to be made from the main amp (model 6026) that came from the Conn Model 542 Minuet organ. What I hope to do with it involves adding a single preamp to drive the two power amps in parallel. The twist is that I hope to tie the two output transformers in series on the secondary side. Schematics will get worked out before November this year. I probably won't finish this until 2014.