I think I have a map reading light holder for a Mk 1 in grey. Never seen anything like it on my MK 2s' It has a swivel moulding with a clear lens that simply rotates in one plane arond a small arc - enough to be from driver to passenger side IF in the headlining. It does not have the internal bulb holder but does have all the contacts etc in vgc.
Also have a grey light holder/sunroof control from a Mk2, in good nick. This is the bit that sits inside, forward of the sunroof and has a light each side for map reading etc.
Free to anyone who wants either one.