Hydraulic,

You might the first attempting this combination, so there may be relatively little help out there for you. I know there will be a lot of people interested in the success of your efforts. I have used a different Norvel engine in the LMH (which didn’t work out for other reasons) but was able to machine up a clutch shaft to adapt the odd engine to the stock clutch parts. A similar solution may work for you.

Please keep us posted,
Spiro