Just while we are discussing livery details something I've not seen mentioned is the fact that 082 has the older style red flash type over head wire warning flashes on the prototype and they appear that way on the model. 071 has the latest yellow flashes and this is represented correctly on the model. There's no doubt that the locos chosen to be produced were well researched. I have spoken to an IE employee who is also an enthusiast (lucky boy) and he says that the four sliding windows were all from a 141 class loco and 112 did have four at the beginning of it's loan period down south. I have only ever seen three myself but I didn't see 112 up close for a good few months after she was loaned to IE.
There are detail differences between prototype locos that have been changed during overhaul down through the years. On some locos the lifting rings aren't at an angle (as per the models) on the panel where the roof fans are.
Some locos have one or more lifting rings on the roof panel behind the cab on the opposite end. If that kind of detail interests you then it is worth studying photos before you choose a model to renumber. I believe this is also the case on the 111 class. 082 also has had some small changes to the roof during overhaul. Personally the bogies are a bit two dimensional and should be more curved but it ain't a deal breaker. The IE logo is a bit too large on the cab sides of 071 and 082. The yellow warning panel is a bit wider on the prototype but it isn't anywhere as bad as the warning panels on 201, 222, and 229. I do hope the the livery and logos are corrected on 077 and 085 when they are released. In fairness the color of the numbers where changed to the correct style from what they were on the pre production models of 071 and 082 (more good research from PM) and I am confident that this will be the case with the errors on the models to be released later.
Rich,