Climbing for life? 
I’m a beginner on TR myself ,so take everything below with a grain of salt …hopefully smarter and more knowledgeable people show up.
If you can train 4+ times a week on busy weeks I think what plan you pick it will mostly depend on :
-how much TSS you can handle. Indoor TSS is nothing like outdoor, so be careful if this is your first time really training indoors.
-What you consider long. If you can cope with 1.5-2hour sessions both mentally and timewise, mid volume might suit you well. If not pick low volume and try to do plus versions or add an endurance ride or sweet spot session when possible.
Problem is you only have 14 weeks left, so running a full base-build-specialty plan will be impossible.
IF! your zwift training was done following a plan, or at least was focussed and not just riding around, I would skip SSB I and do SSB II - sustained power build.
Otherwise a modified SSB like this one + first 4 weeks of build
As for outdoor rides.
If you want to do long ones, substitute them with the longer sweet spot sessions as advised in the week tips. Shorter,easy ones you can do on endurance days or add on if you feel fresh.
A few cyclo’s in the Ardennes might help you build confidence in your climbing and pacing.
Be sure to book your hotel on time, last year everything filled up fast in Bormio.
And if possible it’s worth staying longer, 2 days travelling for 2 days riding is a shame for such a nice region. It’s worth riding to Livigno, Lago di Cancano, Tirano, Switzerland (Umbrailpass), …
Enjoy it!
Will be hard to top for a cycling vacation 