C20 big block th400 crossmember

[rat68c20]

Hello to all. New to the site and I'm sure this has already been beaten to death some where on her but looking for Input and info. I have a 68 c20 that was a 327 4speed. Pulled that out and putting in a 468 bbc with the headers from my 67 chevelle. Hooker long tube, the issue is I am looking to buy A pre fabbed double hump crossmember so I can run my exhaust straight out of the collector. I have yet to find one and don't have the time to build my own. Any help would be great ! Thanks