Whilst I can't comment on the retro-fitting, my pre-FL Scout has Maxidot and MFSW and I've looked at retro-fitting an MFSW to t'other halves facelift Mark2.
If you're handy with VCDS or know someone who is, fitting the clocks isn't a bad job, it's just coding them.
You'll also need a slightly different stalk that allows you to access the menus within the Maxidot, as the standard stalks just have a rocker switch at the end, where as the ones for Maxidot have a rocker, but also a button on the underside that's your 'Enter/OK' button.
To fit the MFSW you may need to change the airbag slip ring and you'll need to check if you have a highline steering wheel control unit to support the additional buttons that an MFSW brings. Again. Coding will be necessary once everything is installed.
Regarding operation of the radio, I can't comment, as I'm running the standard Stream MP3 in my Scout, but again I can't see why it wouldn't work if you've fitted the correct slip ring, controller and done the appropriate box ticking in VCDS.