how much refurb? how badly kerbed? are they true? are the tyres dead?
do u want to just paint or want them filled back to mint standard?
are they really dented? you might need to file and not just fill them!
if they arent true then its not worth bothering. buckled wheels spinning round isnt good
if they tyres are basically gone it might be worth removing them and spending time doing the rim of the wheel properly.
if your not removing tyres and you add material like filler you will need to get them balanced again. they normally add 5g-50g of lead weight to balance the tyre. adding a small amount of filler will affect this.
i am currently doing mine, i have filled and filled them. they have come out really gd. All the paint in total came to about £50 but i may need some more. If anyone want to have a look ask n ill send u a pic of the one thats finnished