My pleasure cz.
1000 grit will be a nice finish.
1500 and then 2000 will approach mirror finish.
The higher the grits, the less use you get out of a sheet of sandpaper.
I know a guy who does his final (after the 2000 grit) polish with notebook paper

He also uses windex instead of oil for the finest grits.
Be careful when you lay down the sanding block at the start of each stroke, you don't want to get little 'J's or fish hook scratches around the base of the blade.
The guard was way easier than than finishing the blade.
Hack saw to take off the ends (trim a tiny bit larger cuz you can't put any back).
Square up the ends with a single cut mill bastard file.
Then file the point off each corner (at a 45º angle) so that you have 3 even facets.
File the remaining 4 points down to make make almost a half circle.
Even out the bumps and you are ready to sand it smooth.
Do cover the blade & handle with cardboard and tape in case you slip with the file.
As always take great care any time you have a knife in a vice.
Remove the knife from the vice when you walk away.
Take your time & go slow.
Enjoy the process & the results will come.