VAX 11/750 rescued, alas...

Following up on previous postings...as I get myself educated a bit more on this system...some questions for the 11/750 experts... 1. It appears that a 'complete' CPU boardset consists of, at a minimum, the following: - L0002 Data Path - L0003 Memory interconnect - L0004 Unibus interconnect - either of L0005 CPU control store, or L0008 Program control store - either of L0011, L0016, L0022 Memory controller (depending on memory choice) Is this correct? All other boards in the L-series are optional, depending on other hardware options, right? 2. Is the L0005 or the L0008 preferred? Which one is easier to use with VMS? With NetBSD? (Gee, a random thought just hit me...is there ULTRIX for this beastie?) 3. The TU58 carts only hold 256KB, so they can't be used as a boot device, I guess, but if I use the L0008 Program control store module, in normal operations, does it get it's initial 'bootstrap' from the TU58, or from the boot device? 4. With the L0004 Unibus interconnect in place, can I just use any (more or less) Unibus module out there, for comm ports and storage? Drinking from the fire-hose at first, here, and hopefully I can pose more intelligent questions as we go along. - Jared