New to this forum but I've already found your posts very, very usefull!

Me and my girlfriend are visiting Tajikistan from mid-July until end of August, total 6 weeks. Our passions are hiking and biking, and we wish to combine these two as much as we can. We are eager to hear your suggestions!
Our gear: 2x Santos travelmaster 2.6, tent+sleepingbag+mat+stove, backpacks suitable for multiday trekking
Our rough plan is roughly the following:
1. Either cycle or take a ride to Khorog from Dushanbe
Question 1: how mucht time for cycling?
2. From Khorog find a nice multiday (4-7 days) trekking, preferably done indipendant without guide.
Question 2: any nice tips for trekking routes around Khorog?
3. After this hike and some rest, we want to ride as close to the Kyrgyzstan border as possible (assuming it will remain closed), and the cycle back via the Barthan Valley
Question 3: how long from Khorog to Kyrgyz border WITHOUT Barthang valley? How long WITH Barthang valley?
Question 4: How long from Kyrgyz border to Khorog via Barthang valley?
Question 5: Where can we find GPX files for different cycling routes?
4. After this, everything depends on how much time we have left. Would be great to travel to the Fann Mountains for some more trekking
Question 5: Can we travel from Khorog to Fann mountains in 2 days by car?
As said, this a very rough outline and can be changed! We look forward to hearing your thoughts and suggestions, feel free to send us other directions and destinations than the ones we mention here;)
Thanks very much
Arne and Nina