Not as simple as just changing looms, would need steering column, stalks, clocks think even the fuel pump wiring is different. My way you don't even have to remove the dash as you can take the engine loom out without removing the dash. I wasn't jumping down your throat, you were just clearly trying to give someone advice and you don't even know all the facts to give that advice in the first place, that winds me up. Bad advice is worse than no advice IMO, I'm not saying you have gave him bad advice telling him to put a glanza engine and dash loom in but there are easier ways and he clearly asked for advice on a GT loom in a UK starlet as he has all the parts off a GT and I'm assuming he had all the bits off a glanza the question would be different. Now at the end of the day iGilmour will do what he seem best for him if he want to take my advice or yours is up to him.