Hi Tidy.
I see that you are planning to take the overnight train from Krakow to Budapest.
Make sure that you book a first class berth. And I hope you get more sleep than I. The train stops a lot and there is bumping when the cars are switched.
Cannot help with the rest of your plans. Just wanted to give you some advice about the overnight.

Krakow - you should do the Krakow Under the Occupation Museum and the Jewish Ghetto on the same day - also Podgorze.

Wawel requires timed tickets which sell out early. Or you can reserve tickets for future days for a small fee.

Definitely see the salt mine - it was great. They are open late so you can walk around Krakow when you arrive and then go late.

Telc and area - easy to find pensions as you go but I don't think there is much outside of Telc. You probably would need to speak Czech to find pensions in the countryside. The TI there will help you get a room in town and possibly in the area.

Sounds like a great trip!

Maybe another day in Vienna? Or a day in Munich?

We will visit Munich in NOvember

A couple of suggestions:

Put the proper tags on your posts. You only have Austria for this post and for your Krakow lodging post you used Czech Republic. This helps everyone on the board when looking for posts by country.

Clean up the itinerary. I would have given more information but this itinerary is too messy to easily read (I couldn't get past Krakow). Combine your days (Budapest, Salzburg) and put an extra line (enter, enter) between different cities to make for easier reading.

You'll get better responses if your itinerary is easier to read and if you tag by country since many people look for posts that way.

Tidy, we just returned from a week in Krakow (as in, our flight home was last night) and so I'll share my fresh observations with you.

Salt Mines. It's definitely worth fitting on your agenda. We booked a tour through the "See Krakow" group and felt it was worth the money. The tour arranges for transport and tickets, as well as the mine guide. If you go as an individual you'll have to wait until there are sufficient people to form a group. Another advantage of being in a group is that after the 2.5 hour mine tour, our group was able to queue immediately for the lift to the surface. The total touring time was about 4 hours.

Auschwitz. We toured without a group and were able to catch a convenient group tour time when we arrived (that's the only way to tour during high season). Touring both Auschwitz and Birkenau took pretty much the entire day, including the drive to and from Krakow.

Wawel Hill. We spent the majority of a day touring the castle area, breaking for lunch and then returning based on our timed entry tickets. I would suggest getting your tickets first, then mapping your agenda that way. I think adding Shindler's Factory would make for a very long day. We included that with our day in the Jewish Quarter and felt that worked well.