Subframe/K-frame Compatability??

Hi just wondering if anyone has tried fitting a Kframe from a BA to a e-series, this is for a possible DOHC conversion in an EF. If anyone has any info or knows if this does or does not work let me know, however I have lined up a ford wrecker that is wrecking BA next week so I might go along and take some pics!
Along the same lines if a BA kframe fits would that need engineers approval, or would it be ADR approved?
I am aware that as a whole the conversion would need Certification.
Cheers Dan

Along the same lines if a BA kframe fits would that need engineers approval, or would it be ADR approved?
I am aware that as a whole the conversion would need Certification.

Cheers Dan