Do not pay for a "1.30 download." Scammers sell these files on eBay. If you cannot find a trusted community link and do not possess your original CDs, you are safer playing the modern (Reforged) version with "Classic Graphics" toggled on in the menu.
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The Warcraft III modding community is amazing, but it is also a prime vector for malware. Many "1.30 full game downloads" on random Russian or Brazilian forums contain keyloggers or crypto miners. If you find a ZIP file that is exactly 1.2GB, it is likely a repack filled with adware.
You cannot legally download version 1.30 from Blizzard today.