'S Conversion Help

[Malley]

Hi all,

Recently found out that the 'R engine in my sax has got some bad stem seals as its puffing blue smoke, however ive the chance to buy an 'S engine with everything, by everything i mean:

Engine,
Starter Motor,
Alternator,
ECU,
Engine Loom,
Interior Loom,
New Radiator,
106 1.1 Gearbox,
Standard 'S Mani.

My question is this, if i change the entire loom (Interior/Engine) will i still need to get the ECU unlocked and remove the small immobiliser box to have the car running?

Also, is there any alterations need to be made to any of the loom in order for it to work?

Sorry about the massive post, just wanting to know which would be easiest option as im planning on converting to an 'S in near future anyway and figured might aswell get it done while i have a reason to

Any and all help is appreciated.

Mal.