intake/exhaust manifold plates

im thinking along the lines of almost total fabrication for the honda im gonna get. i was thinking of making it into a sort-of-touring car. so first off i'd drop in a B18C5 and so on...

but the thing at hand is maifolds, i want to make my own. so here's the question; you know those "plates" where the pipes/intake horns are joined to a [usually] cnc machined plate ? well, i want to know if i could get hold of just those plates so i could weld on my own intake/exhaust piping. i want a custom straight-through if i go N/A or a custom turbo manifold if i go F/I.

thanks.

http://www.bmcrace.com/products/flanges/ Look in the "Header Flanges" section, for the header flange. I know there are a few sites out there that sell them too (saw some yesterday but forgot to save the links). But not too sure about the intake flange.

"flange" i knew there was a word for it but it didnt come to mind. thanks for the link, if you come accross an intake one could you stick up the link please ?

thanks.