That 1320 isn't priced too badly, considering how rarely they pop up. Especially considering that it will give you Game Blaster compatibility without the custom-program PAL/GAL chip (just add the SAA1099 chips)
So far as the MPU-IPC-T, nice find. The last complete one I saw went in the $150 range. I got lucky early last year and picked up a CIB one along with an open-box one, two BOB's, and the a few midi cables for $60 shipped. I was quite happy with that find. Heck, come to think of it, this was right before I found the lot of 2 NIB MidiMan MM-401 cards for $30 shipped (one was missing the custom 9-pin -> Midi in/out cable, but that's not too bad to wire up by hand)
I already have a CT1320 (although without volume knob) and I do not want to start buying a large inventory of CTs. Very nice on your finds. I hope to find more cool stuff once I have more time to search.