Col du Galibier...countdown

Good evening. Allow me to introduce the issue at hand. I have been riding for two years now and this year I trained hard and smart since January. Check my mileage here for reference https://www.strava.com/athletes/3484090.

Tomorrow I am taking 10 days off (vacations no riding, just running/hiking). I return on May 7th and on May 27th I am going to ride the Col du Galibier https://www.strava.com/segments/10029646.

My question is what would be the smartest way to train the last two weeks before hitting the Alps. I live in Paris (which is flat).

2x20 min @ FTP - 80RPM?? 5x6-7 min Climb Repeats?? 1x30-45 min @ Sweet spot??

Any advice or knowledge would be highly appreciated. I have 18 days, post 10 day break, to juice out the best training possible for epic climbing.

Thanks in advance!