The Pirate Train is a good transport for transporting unlawful stuff. It's practically immobile as most of the really big transports are, but it's plenty big enough to turn a profit.
Saint Del is considered a holy healer of diseases of children, but also as a protector of cattle.
Primarily, you should use the Pirate Train with a smuggler or another "unlawful" id. A Trader ID doesn't really cut it, as it just looks like a trader getting a cheaper vessel until Adv. Train.
i dont wantto be unlawful i just want to have like u say a cheaper ship untill the adv train
will ppl really attack mejust for being in a pirate train ?
Pirate train is basicly exactly what it says a train for pirates and trading between unlawful bases you will get a lot of problems if you try to land on lawful planets with it.
About the closest legal match cargo wise I can think of would be the whale I'd look into that one as a temporary vessel until you get the advanced train.
The thing is, it is metagaming to just buy the Pirate Train until the Adv. Train just because it is cheap. Why would a lawful trader buy an unlawful vessel? He/she doesn't have access to a Discovery Readme to find the ships, so he/she would likely go for a lawful ship (Train, Whale etc).