Radius 540R Custom Made
If you're really happy with the guitar and it's working fine other than the fret and fretboard wear, there's no reason to toss the guitar. People play guitars for decades! There are plenty of options to make it more playable again, and prolong its life.
Take your guitar to a good luthier for an assessment. If the frets just have some grooves in them due to hard playing, you may be able to get away with just a re-crown. If they're seriously worn and there isn't enough fret left to do just a re-crown, then you can get a re-fret done.
If the fretboard is seriously grooved or pitted, some minor sanding or planing can be done to smooth it out once the frets are off, but i think it adds character to a "player" guitar. With new tall frets on it, you may not even feel the grooves, so i'd leave sanding or planing the fretboard as a last resort, since it will thin the overall profile of the neck and might affect the feel you like so much.
A quality refret will be cheaper and easier to do than finding another 540R HH, believe me.