Also just found this guy on eBay UK - Click Here---> https://www.ebay.co.uk/itm/HONDA-NSR250-NSR250R-NSR250R-SP-MC28-ROTHMANS-DECAL-SET/143522733271?hash=item216a9f1cd7:g:bPwAAOxyBjBTSXEl
These are for MC28 Rothmans...but in the listing he also say's he has the Rothmans MC21 decal set.
I know you asked about fairings...but getting good quality new decals and fitting to freshly painted OEM body work is a second option if you want better quality,and
are willing to spend more money?