Thanks Dean. So, my head is spinning just a bit but it looks like:
Line Stage
Exicon MOSFET 300, my old tubes
Exicon MOSFET 500 plus 6cg7 tubes
Phono Stage
Exicon MOSFET 300, my old tubes
Exicon MOSFET 500(?) plus 6cg7 tubes
Both
Exicon MOSFET 500, my old tubes
Exicon MOSFET 900(?) with new tubes
Or, Line and Phono 600
Line Stage
Exicon MOSFET 300, my old tubes PLUS
Phono Stage
Solid State 300, no tubes necessary.
Or, Line New Tubes and Phono 800
Line Stage
Exicon MOSFET 500, new tubes(?)
Phono Stage
Solid State 300, no tubes
Now that's gotta be the long answer!
Paul