The good thing about DOS is that you can just copy the folders.
How are you organising your games? I have C:\GAMES and then folders for developers like SIERRA, ORIGIN and their games inside those folders.
I organize by year of release.
C:\GAMES holds games released from 1982-1993. 75 games, with 721MB free space.
D: currently holds WC3 (the exception to my organization) 1 game, 268MB free.
E: holds games released in 1994-1995. 37 games, 488MB free.
F: holds games released in 1996-1997. 12 games, 727MB free.
If I ever run out of room, I can blow away WC3 since I already beat it. But I think I'll be fine, since I already own just about every DOS game I ever wanted, with room to spare.
I'm sure GK2 can be copied onto a DVD and launched from C:
Sierra is awesome with the RESOURCE.CFG, just edit the paths.
I don't normally have a DVD drive in my DOS machine. 😀 I like keeping it looking authentic, and don't have any DVD drives with beige faceplates. I made a temporary exception to copy WC3 to my D: partition.
Yesterday I backed up my DOS drive by temporarily moving it to my XP machine and copying the partitions over. Then did a high compression .7z and moved to my file server. Ended up with a 3.3GB file.
EDIT: other games that seem to be similar to GK2 (no install media, uses DOSBox, huge folder size):
Lands of Lore 2
Realms of the Haunting
Space Quest 6
The Last Express
I haven't tested these due to my partition size limitation. If you have any of these and have time, maybe you can test them.