I created this wallet back in 2012-14,I have the private key for it but have no idea what the BIP38 is,back then I would have bought 20-50 bucks of BTC.
according to the github repository BIP38 was created on Nov. 2012, and it would have taken some time to be added to a user friendly tool for you to encrypt a key using it. are you sure what you have is from then and is BIP38?
So if anyone wants to try it I'll split 50/50 but I will tell you that it might be 0 BTC.
the way i understand this BIP you must have the address otherwise you can not brute force it. because when you decrypt it using AES the key is derived from scrypt using the hash of the address. in other words if you don't have the address then you can't derive that key and you can't even begin to try different passwords in AES256Decrypt.
by the way since you say you don't know the balance i am assuming you don't know the address!