I've been able to get a set of transmission gears from a '<6000 mile' donor engine. The parts seems to be in very nice condition and will come handy when I take the engine apart this winter. I have a noise in the gearbox which I hope to cure with the help of these parts.
These will come handy when the time comes for actually splitting the case:
The following two pictures show locations of the engine case bolts that need to be removed before the case halves
will separate. I have enlarged these pictures of the workshop manuals for better readability :
One of the bolts hide behind the oil pump
Here are a few others..
Output shaft with oil seal removed