Cracked block - Mazda 6 2.3 engine replacement - photos

[evoevomarkmark]

Cracked my standard block last weekend and was wondering what is involved in fitting the Mazda 6 2.3 duratec? I've been told the iB5+ gearbox fits, presumably I'd have to remap the ECU and I need to fit the 2.0 head as the 2.3 has an oil feed?
Other than that is it simple enough plug and play? Are the elections the same and will it drive without the ECU remapped to get me to the garage? Will keep you updated on the progress if it goes ahead! Thanks