Layer height 0,3mm
Nozzle 0,6mm

I, myself, don't have a 3D printer but I looked at some of these comments and remixed the handle. https://www.printables.com/model/555738-improved-handle-v21-for-sandy-fun-kit if anything is wrong after you (if you want to) print it (like it doesn't fit or something else) please tell me. (edited)
@nikolasbabetas your welcome!
@CJayPrinting Check your models comments-makes. Tried it out and found problems with the first design. Looking forward to a revision. Cheers!
Looks great! Thanks for the baseplates recommendation. I've also added a lite version if you want to save time/filament. https://www.printables.com/model/718244-clickfinity-refined-lite
@FPVSmitty_371200 Thanks for the kind words! I'll most certainly need to try those out, thanks for sharing!