My party of choice was Capell, Aya, Rucha and Komachi. There's new equips available as well, and you can find Faina and Leif near the entrance to chapel on first floor. I suggest to buy lots of paralysis removal items. Leave for Cobasna.
Dais is in NW corner of Cobasna. Difficult to find, perhaps, but you have some help - whenever you reach a cross, look at the paths leading in different directions. Above one of them you will see green lights emanating from the ground, denoting correct direction to the Dais!
If green lights are mixed with purple, there's nothing wrong with that, purple lights merely denote right direction to Kiriya's house we've visited earlier.
So from entering Cobasna, go N, W at the cross, N at the cross, N at the cross, N at the cross, W at the cross, open BSCH for MEMOIRS OF AN ALCHEMIST, N at the cross, step into the warp, N, E at the cross, step into the warp, there's WCH with LIZARD SKIN VEST behind you, continue N and you're in Dais.