glad to see you are making progress. prep is a lonely and sometimes uncomfortable endeavor w no sex appeal, yet, it is key to any hope for success. replace all the guibos and center support - that stuff is all toast. i believe the nose bushing doodad is NLA. try difatta, jon norman or dean russel (trail auto). if anyone has this part, it will be one of those. if not, will need a new drive shaft. also, not a bad idea to look at the bushing in flywheel.
as far as i know, there is no such thing as a poly transaxle mount, nor should there be. poly is a very bad choice for engine and trans mounts.
not sure what you mean about Milano "finesse" vs german "meticulousness". milanos have one of the highest reliability records in lemons. once you get the car sorted will be very good for you as long as you don't do anything especially stupid (a little stupid is generally OK). endurance racing is R-E-A-L-L-Y hard on cars. do what you can to eliminate all the failure points you can see - there will still be plenty of unforeseen stuff to fix (stinking hot and under enormous time pressure). btw, a good idea when you buy a part for the car, buy 2 - one for spares.
Prep is sexy enough; I love the satisfaction of it, as opposed to abstractions in spreadsheets and powerpoints, so it's relative, I guess
Re:The meticulousness as relative to Porsches... Porsche parts and systems are very tight, clearances are an order of magnitude finer in many respects than for most other manufacturers. It's actually pretty well expressed in the post above, where the guibo needs a bit of clearancing and then it's reliable for significant length. But yes, in the sorting of it, this is where they are the same. Noteworthy: 944s have a bad Lemons record, to be sure, which is one reason why I'm here... another is Busso!
The points you made that were really interesting was in spares and failure points. I plan on ensuring we fully renew the brakes (have Tarox in mind) and front wheel bearings as preventative. We'll be sure to have a spare water pump on hand to be sure, what other essentials do you think we should have on hand or under review, in terms of spares or prep? This feedback would be solid gold for us, so I thank you in advance.
Speaking of giving thanks, I think we have got good direction and guidance on the driveline from all the contributors to the thread, really appreciate this support on what I think may be the achilles of these cars. Gonna knock out the clutch, slave and hose next while we wait for parts to arrive. Reading the procedure, it's definitely going to be the most interesting clutch job I've ever done, and a Porsche 968 has a little window thing where you leave the driveline IN the car when swapping out the friction disk. I love some of these Italian idiosyncrasies, like that transmission tilt to access the clutch bellhousing deal, it does make the car more endearing in a way.