I am not sure of all the classic zone issues.
The nice thing about Rallos Zek is you will start as dubious to the Kael Giants in Velious. Normally you start as KoS. There are a few good quests you can do if you are not KoS to the Kael Giants.
https://wiki.project1999.com/Wenglawks_Manly_Purse
https://wiki.project1999.com/Collar_of_the_Storm
Both of these quests can be multi quested.