1999 Volkswagen Golf GL model does come in 5 spd. and 4 spd automatic .
it is very expensive and too much to change in order to switch around from auto to manual or the opposite because you don't just change the transmission , it's all operated by a micro computer programed chip. not easy. so just keep looking I think the production of manual in this car is a lot more than the automatic but they did produce automatic.
good luck.