If you buy a glanza to reshell then it's a case of taking the engine out of the new one and the same with the white one and then dropping it into the new shell and off you go ........,... If you buy an n/a to drop the turbo in well that's a hole different ball game !!!! As for the ecu ........ Another £900 bill from TD is the best way lol Or you find a decent glanza with better engine than yours ( lower mileage ) and just swap the mods over and sell the engine and spares from your white one James