I was thinking just TXB0108s or maybe a couple of GTL2000 for the bank of 18 header pins.
Bring the analog straight over, with TXB0108 in parallel, maybe a jumper to enable the OE/ when digital was required.
Or couple TXB0104s so analog/digital could be split up some.
Really stinks not being able to log in during the day except occasionally due to system conflicts or something.