I've got a Vaxtation 4000/60 also! I can tell you
that it is HIGHLY
unlikely you will find a cdrom drive from which you can install VMS. Mine
is running VMS 7.2 and NetBSD 1.5.2. After MUCH screwing around I finally
just went out and got an RRD40 to install systems software.
I've not had much problems finding drives that will boot a 4000/60. I've
used an RRD42, a couple of Toshibas, and a couple of Plextors without any
problems.
--
Eric Dittman
dittman(a)dittman.net
Check out the DEC Enthusiasts Club at
http://www.dittman.net/