I mentioned the article in the original for sale thread:
[BDA Engine Elan Plus 2 For Sale - #5 by draenog]
It has the original diff and gearbox, and retains carbs. The biggest mod was lowering the engine and gearbox by 25mm. Adjustable wishbones, plus some strengthening (output shafts, mounts).
Appearance seems to have been more important than originality (had to look like it had been in there since the 70s).