It actually isn't called Golden Calf Ale - the phrase Moshe used was "Mei Leshem Alei" - My Ale is Leshem water, a reference to the Urim Vitumim - "וְהַטּוּר, הַשְּׁלִישִׁי--לֶשֶׁם שְׁבוֹ, וְאַחְלָמָה"
There is significant dispute as to the identity of the Leshem stone. Many Greek commentators on the Septuagint, including Pliny the Elder, claim it was Amber, which means that Moshe was drinking standard Amber Ale.
Rav Saadia Gaon disagreed and said it was onyx, which would imply Moshe was imbibing an exotic black ale.
Most modern scholars, though, translate Leshem as Jacinth, a orange-crimson stone that lends its color to red ales.
The jacinth, though is named after the Hyacinth flower. Interestingly, it appears scientists have recently rediscovered how to convert the water hyacinth into alcohol, though currently it is only being proposed for fuel stock.
So it appears that the most accurate rendition of Moshe's brew is only for sale by the gallon at gas stations and not as a six pack.
Based upon the current US average of $1.844 per gallon and an assumed ethanol rate of 10%, with 6*12=72 ounces in a six pack and 128 ounces in a gallon, it would cost:
$1.844/gallon * (72 ounces / 128 ounces per gallon) / (10% ethanol content) = $10.3725 per six pack, roughly on par for a craft brew. Of course, you'll still need to filter and bottle the Leshem Beer out of your gasoline...