Wrapping them is definitely the cheaper way but removal and having them powdercoted is the way I’d go. PC is much more durable. It will cost you however. Costs vary regionally though so you’d be looking at dropping into a shop and having them give you a quote. I’ve had a new Currie rear end done that looked fantastic with a double coat for $250 and a 351W block done with a single coat for $300 in the past for larger items.