I'm no expert in plating but I don't think "normal" plating will restore size, nor can it be ground to size.
I once heard someone tried normal chrome on their forks but it fell off quite quickly, due to the fork action.
Even with ordinary chrome they will still need to strip the old plating off first, polish & replate so it probably wouldn't be much cheaper.
& the quotes Iv'e had are quite dear for electroless nickel.