Mike, according to my folder of receipts, one lamp Optic cost me £25.80
iirc it was the main and sidelight unit, but cant be sure, am almost certain it was a lucus unit though and the part number on it is 082371 (came from my local Lucus style shop auto sparky place)
they are a very common unit or atleast were loL! and iirc the same as many of the twin lamp run cars like the 3 series bimmers and some old volvo's, may even be some of the Jag's?? if i had it to hand i'd measure it for you but sadly its elsewhere!!
but essentially Yes it should be easily changable, as its just the optics from what i know that are different, otherwise, just turn them upside down in the pods!
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