The simple answer is NO.
The 61/81s have a reasonable amount of backup in them.... as long as you are vigilent.
1: Backs up to hard disk, current
2: Backs up to hard disk, last but 1 (grandfather)
3: Backs up to floppy / RMD
Now, add to that that you have 2 processors, you basically double the above if you are doing CPU changes (check LD 22 OVLY).
If not, then at some point, do a SCPU, then LD 43, then SCPU again. This effectively will give the off line processor the "current backup" to HDD plus floppy/RMD. Remember though that the "grandfather backup" will be old unless you edd twice.
There is a warning on the SCPU.... if you have SCCS/CCx or CP you may cause a brief interuption on the ethernet.
If someone really has a bee in the bonnet about off site storage, you could try file copy (by necessity using PDT) or you could do the "trained monkey" thing where someone trusted can cycle the floppies / RMDs.