Having once done radiator work for a living, I can assure you that a recore should not look like it was done by a monkey. If that's how it looks, that probably describes the guy who did it. A recore should look like a new radiator. Even when we did just a minor repair, we cleaned and repainted them, and they went out looking like new. Find yourself a new radiator shop.
If you're talking about the motorhome in your avatar, that will almost certainly be a copper and brass radiator, and you will probably be lucky if it comes in under $400, assuming he can find one. It could be a lot more. Copper and brass prices have gone through the roof. As long as the tanks are good, my suggestion would be to find a GOOD radiator shop and have it recored.
Today's radiators have aluminum cores and plastic tanks. Amazingly, they seem to be pretty durable. If you can find a direct replacement they can be had for well under $200. I recently replaced one in a Blazer and it was $125. The original one had lasted 215,000 miles before a tank cracked.
curmudgeon: noun; a crusty, ill-tempered, irascible, cantankerous old person . . . .
79 27' Holiday Rambler Statesman, 78 32' HR Imperial, 85 36' HR Imperial 5th Wheel