Where can we get more info about the final number of master nodes, at what price are they being sold?
150 Nodes. .001 SUB1X each. Ether/Delta is really dry right now. No one is selling. Everyone is waiting for the swap. 30% locked in MNs, and 70% circulating supply. Only 0.35 will ever be circulating.
The is a deadline for the swap? At this moment I'm trying to buy, but as you have said, nobody is selling.

I have reserved one masternode but I don't know if I will have the 0.001 SUB1Xs needed....
I'm in contact with the Devs regularly, and they mentioned earlier that the swap period would go for 2 weeks. You really shouldn't be reserving Nodes until you actually have the .001 in your wallet. You actually end up having to buy a fraction more than .001 to get a full .001 on Ether/Delta because they take fees remember. Good luck getting your SUB1X/Node.