RA81 questions.

Well, since the RA92 is OOC until I figure out how to kludge a fix, I guess i get to either go back to the RA81 or give up. (I have no other disks.) Anyway, when I last left it, the RA81 was complaining of seek errors, the panel lights had all burned out, and it was making scary noises. If I reformat the drive (Will RT11 do this?) will it rewrite the positioner information, or is that permanently written from the factory? The RA81 is really really heavy, and sucks a lot of amps, and I really don't know if it'll fit in the cabinet, so I really don't want to try playing with it unless it's saveable. So, questions are, is there any way to fix the disk short of a new HDA, can I replace the panel lights with LEDs, and can RT-11 format it? -------