Moped Army

picked up a metrakit on eBay from mopedrecylcers for my girlfriend's bike.. i noticed it looked a little different then mine, but nothing too major. the gaskets are the same for each. on the box of the new kit it says it's for a X20, X30, Maxi "export" model.. are these engines the same as e50's? couldn't find much about them.

in the shot below, the top one is my e50 kit, bottom one is the X20 kit. the powdercoating is better on the X20 kit and the base is rounder. otherwise, should this bolt up to an e50 without any hiccups? sorry if this is a dumb noob question.