Robert, EARLY Chromies are different to late chromies. All tech 1's are classed as late pre-facelift.
There are hundreds of random subtle differences and most early Baur's fall into the early category. The Y-Plater I have been involved with is an effing nightmare you wouldn't believe how different everything is, from the parcel shelf to seat belt clasps, 2 part main carpet, seat belt rails, fuel tank etc etc
Use donors from 1986/1987 and you won't go wrong I wouldn't think.
How do you pronounce 'either'? I say 'either', but some say 'either'. Either is correct.