Re the MSCC Travel Club part of the question:
We have used MSCC Travel Club for a trip to Austria (where we met a few who also frequent this forum) and for a bespoke trip to the Pyrenees and Picos for 4 DonMog cars.
We have booked a trip in June with them - Stelvio Pass and Lake Garda.
They are good value and a huge time saving over organising your own hotels etc.
We had started to try and organise the Pyrenees and Picos ourselves but kept encountering fully booked Paradors. Scenic & Continental / MSCC Travel Club sorted it all for us.