No if it was an origional XTR bike it would have been a “Factory Team” (XTR) only available in black/bass boat gold which is one step above the “Factory” (XT) available only in bass boat red/bass boat silver. You have a 1999 “Factory” with non origional XTR parts on it. The paint jobs are one off per model so thats the easiest way to tell them apart. Nothing wrong with somebody upgrading the parts over the years. The yellow Rock Shox fork isnt 99 spec either… The “Factory Team used Rock Shox SID SL (blue) and the “Factory” used a SID XC (blue).
Its all listed on this website.