upgradeing to plesk 8 with suse 9.1

[zeki79]

hello

at the moment i have a plesk 7.5.4 with latest patches on a suse 9.1

i want to upgrade to plesk 8, but suse 9.1 is not supported.

whats the best solution to make a upgrade to plesk 8?

my ideas are

a) upgrading suse 9.1 to 9.3 ( i hope it runs all fine..), then plesk 8 upgrade

b) make a plesk backup, reinstall the system with suse 9.3, install plesk 8 and restore with the backup file

c) install a second server with plesk 8 and move the domains from plesk 7.5.4 to plesk 8

i wont have a long downtime...

thanks for any tip!
greets
zeki