Istanbul to Tbilisi in April — how much good mountain riding will I miss?

I'm considering cycling across Turkey from Istanbul to Georgia this April and am looking into routes that take up to 3 or 4 weeks at a pace of 100-150km/day and emphasize quality of riding and nature. I love challenging climbs (on pavement or gravel) through the mountains with pretty scenery and, if possible, secluded camping.

I'm wondering how much of the best mountain riding I'd have to skip due to the April snow levels and weather, versus if I went later in the year.

It looks like many of the highest paved mountain passes would be cleared of snow and passable in April, barring a rare storm. For example,
https://www.dangerousroads.org/europe/turkey/4724-karabek-ge%C3%A7idi.html
https://www.dangerousroads.org/europe/turkey/11413-paland%C3%B6ken-ge%C3%A7idi-is-an-absolute-must-for-road-lovers.html
Snow on the sides of the road would limit camping at altitude, but the route itself could easily be done and looks quite pretty in white. On the other hand, many remote gravel roads above 2000m that would make for fun adventures are totally off limits into the early summer. For example,
https://www.dangerousroads.org/europe/turkey/3923-bayburt-of-yolu-d915.html
At lower elevations, it's just a matter of camping being a bit chilly at night.

What are you favorite climbs, mountain passes, and scenic stretches of road to cycle in Turkey? And would you do them in April or save them for later?

I understand that April is a great time of year for riding along the Aegean and Mediterranean coasts and in the western interior. So my options seem like 1. not aim for Georgia, stick to western Turkey and save the east for a season when I can fully enjoy all it has to offer, 2. reach Georgia by compromising on route quality, 3. find a way to do it all. Any suggestions for how to do #3?