I have a late 2012 model. Only problem so far was several attempts required to finally get the drive belt aligned so it was fully on the rear sprocket. Fluid changes showed no issues.
Two summers of Arizona heat up to 44 C with no issues other than to the driver,so have not gone for the fan kit. Harley's, Indians,Victory's run thru out the summer here with no ill effects. Discussed this with the big Harley dealer here who said the 3W engine fully exposed should run cooler than a motorcycle,especially the rear cylinder. Their one piece of advice: Never, ever run any oil in the engine other than Mobil 1 full synthetic V Twin cycle oil from day one(or its equivalent).
I have not installed any of the other options.
Did not buy from local AZ dealer as he was not here when ordered, but he has done great work on one of my other Morgans--normally I do my own work unless above my backyard skill level.
TomS
