Yes I've eliminated the immobilser for the time being, just so when I fit it and the engine doesn't start I don't have to wonder if it's the immobilser. I may refit it if after the IVA if it reduces the cost of insurance. As for making a light loom I think it would be more hassle and expense. I separated the engine from the lights just so if/when I go aftermarket ecu I don't end up pulling the whole loom out to do so, Also I don't want any wires running past the hot side of the engine so it's clear for the turbo install at some point in the future.