welcome to the site, those headlights look quite good, more NC30 than CBR250 i think.
but i would say an 91 R with a set of brand new Nikons in that condition gotta be worth 13-1500 in my book but going by what they actually go for 11-1300.
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MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold