BA23 setup and DZQ11 configuration

Jerome, Thanks for your detailed response. In fact, I'd like to thank everyone on cctalk for the great advice I've received. Based on all of your input, I've arranged the following change to my PDP-11 configuration: BA23 enclosure KDJ11-B CPU (includes console port and boot rom) (m8190) (thanks Dave!) MSV11-QC 4mb memory (m7551 cf) Sigma RQD11-EC ESDI controller RQDX3 for RX50 (m7555) TQK50-AA for TK50 (m7546 DLV11-J (for extra serial ports) (thanks Julian!) Possibly a Viking SCSI controller (for CD-ROM and maybe a hard drive) I have at least one working ESDI hard drive so that will be my boot device. My real problem is removable media. Even though I have an RQDX3 to control an RX50 drive, I don't have a working RX50 drive. Same goes for the TK50. I have non-working versions of both drives but nothing I can use to move software onto my system. Anyone have a working RX50 and/or TK50 drive they can spare? Thanks, David