Hmm... that's realy a lousy way of fitting things. I say use the other end of the case and let the diskdrive stay. There's plenty of room to fit a ultraslim CD and keep 2.5" HD and scandoubler so there should be space enough for your delfina there instead of a CD if you just use the space that's precented to you in a creative way and create your own fixating points and mod what needs to be modded.
My A1200 project was fitted with BPPCe+, BV, Scandoubler, Soundcard, HD, Diskdrive, Keyboard interface, several hacks and there was still room for an ultraslim CD and glowwhire (though I ran into heating problems and had to drop the project and make it into two projects... a custom tower and one ultra cool modded A1200 though not so maxed out desctop).
