To be honest mate it wasn't difficult just time consuming. It took me 2 days 12 hours each day. What i did was take photos of the engine before i took it apart just incase. All the electrics and sensors are colour coded so very easy to find where it goes. The hardest bits believe it or not were getting the wheels off because I couldn't find the key for the locking bolts. Also the drive shafts really need 2 people to do them. A bit of advice though take the rad and turbo out before lifting the engine makes it much easier. Did the first engine with the turbo on so it can be done but there was a lot of chipped paintwork (on the scrap car thankfully). Oh I forgot trying the get oil in the gearbox is a c**t !!

Good luck shouldn't have too many probs.