It wasn't but I have cheated.
Several reasons really but mainly down to
Cost, as i have a MK 2 loom it has an immobiliser in the ECU and I can't be bothered with messing with it so I needed a new one. Also I do not have the Crank angle sensor and Lambda sensor with the engine so when I worked out the cost it wasn't that bad.
Functionality, I have had a MAP sensor added in so if I want to go forced induction at a later date I can but it also gives me loads of options later as the engine loom has used my existing plugs. (Omex don't make an off the shelf loom for this engine so I have had several emails with them to get a loom that suits.)
Looks, The most important one.. the standard loom comes onto the engine right at the front on a pair of plugs that look crap and as much as I can alter a loom to make it look right it would always be a silk purse/sows ear situation.
I made the decision as well not to renovate the brake calipers as they were a but cruddy but also when you work out the cost of new seals/refurb kit you might as well buy new and there not that expensive. The rear brakes did not come with the carriers so they were removed and refurbed, I though the rusty days were over but I guess not.
Not much difference.