A mint NSR with those low miles on wants snapping up. Everything that's fitted to the SP will bolt straight onto the R if you decided you'd like it, but then so do Ohlins and a host of other upgrades!

If $5000 is for a titled bike, then I'd say it was worth it. However, check it hasn't been raced - low milage bikes with immaculate body work may not be what they seem!
_________________
MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball