To make things very simple for your self just use the engine mounts that come bolted the engine it will put the sump 40mm below the chassis rail. Put a plate that spans between BR1/BR8 + BR2/BR9, add full length gussets to each side between that and a contact plate set at 35'. It took me around 2 hours to make a pair for mine or around 3/4 of day with household tools.
