Egregious VMS newbie questions

Thanks to Mr. Finnegan - I have a nice VAXstation 3100 Mod 38 running Hobbyist VMS V7.2 - sitting here whirring away. As I observed to him - it's interesting to have a DEC machine in my collection that weighs *less* than I do. So now my untutored Quesions am: Can this be done: VAXstation --> Ethernet -->[???]<-- Ethernet <-- cablemodem <-- the Net. What adapts Thin Ethernet coax to Cat5? More specifically to download/install freeBSD perhaps... And, furthermore: MY VMS experience was sketchy at best, mostly desultory playing with a uVAX II that Hans now has - and I have no doc at all right now. What is the system called that VMS uses to chain all the DCL commands to auto-execute at startup? I wanna edit a lot of them out - especially right now it's looking for a cluster it can't find, and periodically (every 15 mins) complains of "too few servers". Thirdly/finally: Anyone got a VMS Grey Wall they'd like to unload cheap? I'll pay for the books, packing and shipping to zip 89706 (Carson City, NV). Cheers! John