Last time I checked, Remington was selling the replacement old style factory safety button, spring and ball bearing detent for $3 for each part ($9 total)plus shipping. Big-head safeties are likely to cost $12- 20 for the safety button alone, up to you if you think it's worth it (I don't).
Changing out all the parts will give you a proper functioning safety with the feel of the original, the detent and spring for the J-lock safety are of a different length than the old style parts and IMO are not a good idea to reinstall with an old style safety button. Restore it all the way if you're going to change it...
Stay safe,
lpl/nc