If this servicing is for the wrecked 80mm forks from Pinkbike I think you're throwing good £ after bad. Decent Rebas both 26" and 29" can be had for about £120 and will have resale value.
Will replacement seals work on such scored uppers - could be an expensive mistake if they still leak.
Fuck it, I'll do everything and then work out what spares I'd need and how much they'll be.
Just need to get some of those pliers to get those weird locking washers off.