Got the engine and box for an Ebay bargain of £800. Bought an uncut loom for £100 from a scrappy in London. Unfortunately, engine came without the transponder part of the key which took ages to get around. You have to have a matching clock/key/ecu with a pd as you can't run standalone management to bypass the immoboliser like you can with the 20v. VW were no help and would not recode a new key I provided, even though I could provide VAT proof of the engine purchase, V5 and passport ID.
If I had known it would have been this hard/long 14 months ago then I would have TB'd the 2.0 16v that was in there or just been boring and gone for a 20vt.