He does not offer a header style mani. BUT, for the right price he'll build ya anything im sure (i got him to build a front mount for my lt1 =D )

 

I said log

Log manifolds are what I posted, tubular is what you posted. I don't think you would ever have a problem with heat, as those manifolds are built out of VERY thick (aprx 4.5mm) steel. They are much like a stock cast manifold in longevity terms. I would have to look into coating them, but I would estimate they would be in the $2000 range depending on how much the coating was.

Tubular could possible be done, but would be MUCH more expensive since it would have to be all custom.