Vaxstation/Microvax 2000 Eprom programming

Hello. I'm actually working with one Microvax 2000, one Microvax 3100 and one RZ55 SCSI external enclosure with one 359 (more or less) SCSI disk inside. I have installed VMS 6.2 in the Microvax 3100. I've backed up the VM6 6.2 in the SCSI external disk, and I'd like to try boot this disk from the Microvax 2000. Until I know, is necessary to modify the EPROM with a patch that I have. The problem to do it is, of course, the WAY to do it. And this is the matter: * How can I update/patch the EPROM of one Microvax 2000 from version 1.2 A to version 2.3 (I think this is the version of the patch) to support SCSI bootable devices, like one installed in one RZ55 external enclosure ? One additional matter about this question is: * Exists another patch that allow to boot the system from one RDD40 external CD unit ? And, like a possibility to obtain some money: * I need one CADDY for my DEC RDD40 external CDROM unit. Is there anything out there ? Just by the way... Anybody knows where I could obtain this stuff for the 2000 ? That is: * One diskette unit (I think it goes inside CPU, but I'm not sure, and additionally I'd like to know, what happens then with the RD54 disk that comes inside it actually) * One external expansion box with one additional RD5x disk. I think it uses something like one SASI connector to plug into the 2000. * One additional RS-232 ports expansion unit. I've read that it provides the Microvax (or Vaxstation) 2000 with up to... Four / Eight ? additional comm ports. And finally, there is for Europe collector/sellers: I'm searching this stuff: * one DSD400 or DSD880 double 8" disquette unit * one RL02 disk unit (I have six RL02 cartridges ready to use) * one VT102 with interface cable BCC08 or similar * one TU58 tabletop tape unit with interface cable BCC08 or similar * TWO interface connector with one Female AMD 10-pin connector in one extreme, and one standard RS-232 9-pin in the other. Anybody knows/has/sells any of this items at reasonable prices, or simply legate them ( :-))) what innocence mine ... ) ? You can send the responses to my e-mail address if you consider it better. That's all for know. I'll agree a lot a response. Thanks. Greetings and best Regards from Spain Sergio