Hi Robin,
In the end I bailed on riding the Maratona and deferred until 2020. It took me longer to recover from my surgery than I anticipated, so didn’t get back on the bike until 8 weeks later. As my partner was still riding the Maratona, I went along and rode the climbs over a few days. The scenery is beautiful, but the climbs are brutal, think 10km at 9.3% average.
My advice would be to not be too optimistic in terms of your recovery time. It will probably be longer than you hope. Once back in the saddle, I would start with Base followed by build, getting in as many weeks of your plan as you can. Then don’t sweat it, just go and enjoy The Dolomites with the fitness you have.
When will you be there? I will be there for the Maratona on 5th July, unfinished biusiness!!