DarkCrisis
Takhisis' (& Soth's) favorite
Last time I ran B/X for people new to it they were surprised plate was so cheap. Start with 3d6x10 gold and plate is 60 gold. Yeah. Pool a few coins to kit out the fighters so they can keep everyone else alive.
LL uses a different tier. Possibly from BECMI? Plate is 250. Best starter you can get is AC 4 at about 75 gold plus another 10 for a shield for AC 3.