RB and a roller Cam

If you are rebuilding the engine, another few changes while it's apart is no big deal.

If you are only expecting to perform a cam swap and have everything just work out, calling someone like Hughes Engines might be a good option.

I know a couple of guys whom have purchased valve train items from them, they definitely have Mopar B/RB down to a science. This is where my roller valve train will be coming from.