Thanks for sharing. Its interesting to see another style of hi-deck thats not an OS30 engine.
I noticed there isnt any dowels to locate the head to the plate, or are they just not pictured?
Also there seems to be a step in the alignment between trear oil return holes in the plate and the top of the block. Its worth drilling these so they are the same size all the way through to the sump.
I hope you will post pics of the whole build of the engine.