Why do you have spell breaker 4? 3 is enough and that 1 to stone curse. You might wanna consider dropping LB/TS to get Safety Wall (or just neuralizer it out. Is neuralizer even in classic?)
I'll admit, as dedicated I was as a Sage back in the day (being one of the rare active+main Sages before trans ever came out), I absolutely failed at leveling, was a huge leveling whiner, and resorted to hydro farming(that's what I get for being a leveling/woe hybrid). So I can only offer some advice on being a woe-int Sage.
With that said, getting to 120 int is a big deal for leveling. Thankfully, having buff slave accounts is easier now than it was back then. My biggest mistake was not hitting this break point, even with all int gears, making me kill painfully slow.
For WoE, having 90+ base dex is a must for offensive ME (rushing/breaking precasts).
Also for WoE, whenever the sage is stunned, his ME will NOT block aoe spells like SG for the duration. Needless to say that high vit is needed.
With our limited stat points, what I found to be the easiest is to rely on gear. Wear all int gear for leveling to help you reach that 120 int. Sages are not wizzies with high cast time for damaging spells. This lets you lower your base int and get more dex/vit. Needless to say, you don't need much int in WoE, so switch over to dex gear there.