Help! Hedders for a Duster W/1 7/8" tubes on S.B. With R/T heads??

Thanks guys, I'm headed your way. For the problems involved I don't think it's worth it, just for bigger tubes; leaks, fender well, and collector changes.

TTI's with a 3" exhaust sounds good to me. I know of a used set of TTI's I can pick up, good shape but they are nickel. Can these hedders be ceramic coated? My engine compartment doesn't need all that heat, that's for sure.