I have been checking all of my work for pin conditions. I have created a pin set illustration for the signals that are not floating below.

/IPLx: No interrupt requests (68040 manual table 8-3), pull-up, no other connections.
/AVEC: No auto vector (7.5.1.2) pull-up, no other connections.
/DLE: No data latch enable (5.11) pull-up high, no other connections.
SCx: No snooping (table 4.1) tied to gnd, no other connections.

/LOCK and /LOCKE are pulled high, but I think this is because of a reset state for the external ICs.