[Gelbster]

Oh, I have a lift, perfect working conditions,no time constraints ,all the tools and equipment,the skills,the budget, the machinist stuff.That is why I am ashamed to admit the difficulties. Equally ,I don't want noobs to charge into an engine R&R without a caution to do a lot of reading first !
All the advantages I had are inadequate unless you know all the "gotchas"also. The guys I admire are those who do this in their driveway with a few Harbor Freight tools.
That is why I linked the Roaring Tigers video of Jet 1 . There is no single place that lists all the issues. So each of us improvises,hacks and blunders through. If the Boxster had half the info there is for a Miata, it maybe would be easy !
One simple,minor example - why no mention of making a few guide pins to make fitting the DMF easier ? 3/8" brass rod would work I think.I just used a couple of odd pieces of of mild steel rod.Why not advise to check the reluctor teeth before you fit the clutch,in case you bent them installing the DMF ? If you miss this ,the engine will not start. You will never find out why until someone (maybe??) thinks of this obscure issue. Yup, you will need to remove the transmission+ exhaust system just to visually check!