(BALKANS🏔️) Any recommendations for this route in Mid-End October – POSSIBLE?

Hey I want to bike from Munich-Thessaloniki in Mid-End October, this is my second big tour. Last year I did a 4200km tour from Germany-NorthCape. I know that it's already cold and the year comes to an end but I do not want to end this year without a bikepacking adventure. And as I always dreamt of cycling the Balkans I thought that this might be a good idea. I need some help about the route is there any better sections which I can take? I want to cycle south because of good and warm weather but I also want to see big mountains and prepared for cold sections. Which clothing should I take? I need some general help about my decisions and this adventure 🙂

My Route: https://www.komoot.com/tour/2610447545?share_token=aPsnDdhNI70ZQ1mcgEmbqzrYPOaF1veSbncXk5x6Iyj4zW0dw8&ref=wtd

My Equipment List: https://docs.google.com/document/d/1sJdGQQelhwkt464KGgk7atvC0f7p07LHwPrBb7Ksunk/edit?usp=sharing