6-v8 k-member kit

I am looking to do an engine swap to v8 and realize the k-member will need swapped to a v8 version or at least retrofitted to allow for relocation of motor mounts etc.
Been searching the interweb for Schumacher since they are the folks most mentioned for such a project, but i can't seem to locate a website for them. I
have searched the forums as well as the vendor section but come up empty.

Would someone provide the link to them please? Also, is it true there is a kit to use the existing S6 member? And I have read different opinions on rather the drive shaft would need changed or not?

Thanks in advance.