1000 miles a year. That is not much. Put the original in. Do it right and it will be good to you. Why would you want to do all that work just to tell everyone the original is home. Motors are easy, body work is what really hurts. Just don't bang it up. Look at Marlin and Frankie with their Yenko Deuces. Neither are afraid to clean the carbon out. Both of their cars are very nice and worth alot of money. I say go for it! Just make sure your tach is not on 6 grand before your oil pressure is on 40 lbs.