since a zone2 dish is still only 60cm, it would be marginal. Normally 80cm is recommended for Astra1+Hotbird sat reception. You'd also have a problem getting a dual LNB bracket to fit the Sky dish since it's a non-standard fitting designed for use specifically with the single Sky-supplied LNB. No doubt you could rig something up to test it though.
These monobloc LNBs are not ideally suited to the zone 2 minidish Baz, they are designed for standard dishes, the mounting will be incorrect, it may be difficult to achieve the correct focal length and they will not illuminate the whole of the dish face.
Not saying that it won't work at all, but not as well as with a standard dish.