Still trying to crunch the numbers, George.
So in my case on my PC I have one for vlns 1 & 2 & vlas; one for cellos and basses; one for trumpets and french horns; one for trombomes & tuba; one for Piccolo, flute, and alto flute; one for oboe, clarinet, and english horn; one for bassoon, contra bassoon and bass clarinet, total of 7.
So this would be 18 for you? And then I have a similar amount on the Mac. So let's say 36 or even 40.
I would think that is doable. But to your larger point, yes, it is a complicated workflow bewtween software instruments, MIDI tracks, and auxes.