Multi-day hike in Stubai Alps, Austria
 

My family (2 adults,2 teenagers) are planning a multi-day hike in the Stubai Alps in mid Aug. We are reasonably experienced hikers (trekked in the Dolomites last year), but not experts by any means. Looking at the Ciccerone Guide by Alan Hartley and a few blogs, we have developed a draft itinerary which is as follows:

Day 1: Park at Mutterbergalm and hike up to Dresdner Hut and on to Sulzenau Hut (spend night)
Day 2: Hike from Sulzenau Hut to Nürnberger Hut and on to Bremer Hut (spend night).
Day 3: Hike from Bremer Hut to Innsbrucker Hut (spend night).
Day 4: Hike down from Innsbrucker Hut to Neder. Catch bus from Neder back to Mutterbergalm

Would appreciate your thoughts on this, in particular:

1. On day 2, we are combining two stages from the Ciccerone Guide, which total 11km with ~1230m of ascent. Does this sound manageable? We would make an early start (say 6am) and plan to Bremer Hut by mid afternoon at the latest.

2. What do you think of this section of the Stubai Alps compared to the others?

3. We had also considered the Alderweg - was wondering how you would compare the two in terms of scenery and walking enjoyment?

many thanks in advance for your help, Vijay