That means you're moving Indy away from A603 via a custom 48pin connector.
Theoretically it'll work. Dunno how the signal will be after some cm of flat cable to the desired place (I guess under the floppy is the only way possible to fit).
Space is tight...
One more socket fits just fine and keyboard closes np. Be sure to use Sockets with round pins and NOT flat ones as they are taller in height