The first three are large enough to fit us all. The rest are for if we split into two groups. I think the first two I list are among the best options for us all, and very close to hotel.  Anything else on AirB&B would be too expensive per person, such that it’d make more sense just to bunk up at the hotel.
-2. €275 pn. (€35 pp pn) This is a top choice, imho. It’s gorgeous and lots of room for us all it seems. One king-sized bed with new mattress, one queen with swedish latöx mattress, two single futons. Steinway C, beautiful instrument, can be used by classical musicians/singers. Tolerant neighbors. and on Landstrasse as Rob suggested. Looks like -2 and -1 are the same landlords.
-1. €280 pn. This is perfect for all 8 of us. and on Landstrasse as Rob suggested, only 5-10 min walk depending where on street. €280 pn. One kingsized bed with new mattress, one queen, one full-size with authentic swedish latex mattress, two single futons, a trundle bed that turns into a king size bed. = 35 pp/pn!! This is not as pretty, but it has more bedding, so might be a better option actually.
0. €175 The flats will confortably fits for families or group up to 10 people. It can also accomodate one or a couple in a private room. There are 4 beds available. Gärtnergasse = 500 m from hotel!!
1. €150 a bedroom with a double bed (140cm) and a separate living room, also with a comfortable sofa (sleeping bed 140cm) and a possible extra single bed; if it really is at Rudolfplatz, then it’s a 15 min walk to hilton (too far for our purposes but we can inquire)
​2. €130 looks like there are 3 beds but one bedroom, so sofa beds and air mattresses? Seilerstatte = 800 M (10 min) Hm…
​***3. €125 Bedroom: 1 double bed 1,60 x 2,00 m, bed frame covered with white leather.

Living room: 1 sofa extendable to double bed 1,40 x 2,00 m, 46 inch LED TV with USB and DVI ports, dining table for 4 persons. On Stubenbastei, which is only 400 M!!​

​4. €130 Looks like a bed and some pull-outs but my German isn’t very good. Riemergasse = 550 M