Scotty restoration | Golf Monthly

Looking at getting my dads scotty restored for him, have spoken to the guy at the putter room, peter, he has quoted me £100 to restore the head plus fit a new grip. Is this a decent price for it? Is it worth doing considering its half the price of a new one.anybody dealt with this guy or coukd recommend me a place to get it sorted?? It's basically chipped and gone a bit rusty due to him being careless!! And not having a cover on it.
The putter is a scotty Cameron pro platinum, Newport, midslant.